Triangle Median Practice Problems and Worksheets

Master triangle medians with step-by-step practice problems. Learn to find medians, calculate areas, and solve centroid problems in triangles.

📚Master Triangle Medians with Interactive Practice
  • Identify and draw all three medians from vertices to opposite side midpoints
  • Calculate median lengths in right triangles using the hypotenuse rule
  • Find areas of triangles created when medians divide the original triangle
  • Solve problems involving medians in equilateral and isosceles triangles
  • Locate the centroid where all three medians intersect
  • Apply median properties to find missing side lengths and angles

Understanding Parts of a Triangle

Complete explanation with examples

Median in a triangle

A median in a triangle is a line segment that extends from a vertex to the midpoint of the opposite side, dividing it into two equal parts.

Additional properties:

  1. In every triangle, it is possible to draw 3 medians.
  2. All 3 medians intersect at one point.
  3. The median to a side in a triangle creates 2 triangles of equal area.
  4. In an equilateral triangle - the median is also a height and an angle bisector.
  5. In an isosceles triangle - the median from the vertex angle is also a height and an angle bisector.
  6. In a right triangle - the median to the hypotenuse equals half the hypotenuse.

Diagram of triangle ABC showing medians AD, BE, and CF intersecting at the centroid. The centroid divides each median into a 2:1 ratio, illustrating triangle centroid properties.

Detailed explanation

Practice Parts of a Triangle

Test your knowledge with 33 quizzes

Look at the triangle ABC below.

Which of the line segments is the median?

AAABBBCCCGGGHHHFFFDDDEEE

Examples with solutions for Parts of a Triangle

Step-by-step solutions included
Exercise #1

True or false:

DE not a side in any of the triangles.
AAABBBCCCDDDEEE

Step-by-Step Solution

To solve the problem of determining whether DE is not a side in any of the triangles, we will methodically identify the triangles present in the diagram and examine their sides:

  • Identify triangles in the diagram. The diagram presented forms a right-angled triangle ABC with additional lines forming smaller triangles within.
  • Triangles formed: Triangle ABC (major triangle), Triangle ABD, Triangle BEC, and Triangle DBE.
  • Let's examine the sides of these triangles:
    • Triangle ABC has sides AB, BC, and CA.
    • Triangle ABD has sides AB, BD, and DA.
    • Triangle BEC has sides BE, EC, and CB.
    • Triangle DBE has sides DB, BE, and ED.
  • Notice that while point D is used, the segment DE is only part of line BE and isn't listed as a direct side of any triangle.

Therefore, the claim that DE is not a side in any of the triangles is indeed correct.

Hence, the answer is True.

Answer:

True

Video Solution
Exercise #2

Is DE side in one of the triangles?
AAABBBCCCDDDEEE

Step-by-Step Solution

Since line segment DE does not correspond to a full side of any of the triangles present within the given geometry, we conclude that the statement “DE is a side in one of the triangles” is Not true.

Answer:

Not true

Video Solution
Exercise #3

The triangle ABC is shown below.

To which side(s) are the median and the altitude drawn?

AAABBBCCCDDDEEEFFF

Step-by-Step Solution

To solve the problem of identifying to which side of triangle ABC ABC the median and the altitude are drawn, let's analyze the diagram given for triangle ABC ABC .

  • We acknowledge that a median is a line segment drawn from a vertex to the midpoint of the opposite side. An altitude is a line segment drawn from a vertex perpendicular to the opposite side.
  • Upon reviewing the diagram of triangle ABC ABC , line segment AD AD is a reference term. It appears to meet point C C in the middle, suggesting it's a median, but it also forms right angles suggesting it is an altitude.
  • Given the placement and orientation of AD AD , it is perpendicular to line BC BC (the opposite base for the median from A A ). Therefore, this line is both the median and the altitude to side BC BC .

Thus, the side to which both the median and the altitude are drawn is BC.

Therefore, the correct answer to the problem is the side BC BC , corresponding with choice Option 2: BC \text{Option 2: BC} .

Answer:

BC

Exercise #4

The triangle ABC is shown below.

Which line segment is the median?

AAABBBCCCDDDEEEFFF

Step-by-Step Solution

To solve this problem, we need to identify the median in triangle ABC:

  • Step 1: Recall the definition of a median. A median is a line segment drawn from a vertex to the midpoint of the opposite side.
  • Step 2: Begin by evaluating each line segment based on the definition.
  • Step 3: Identify points on triangle ABC:
    • AD is from A to a point on BC.
    • BE is from B to a point on AC.
    • FC is from F to a point on AB.
  • Step 4: Determine if these points (D, E, F) are midpoints:
    • Since BE connects B to E, and E is indicated to be the midpoint of segment AC (as shown), BE is the median.
    • AD and FC, by visual inspection, do not connect to midpoints on BC or AB respectively.

Therefore, the line segment that represents the median is BE BE .

Thus, the correct answer is: BE

Answer:

BE

Video Solution
Exercise #5

Look at triangle ABC below.

What is the median of the triangle and to which side is it drawn?

AAABBBCCCDDDEEE

Step-by-Step Solution

A median of a triangle is a line segment that connects a vertex to the midpoint of the opposite side. In triangle ABC \triangle ABC , we need to identify such a median from the diagram provided.

Step 1: Observe the diagram to identify the midpoint of each side.

Step 2: It is given that point E E is located on side AC AC . If E E is the midpoint of AC AC , then any line from a vertex to point E E would be a median.

Step 3: Check line segment BE BE . This line runs from vertex B B to point E E .

Step 4: Since E E is labeled as the midpoint of AC AC , line BE BE is the median of ABC \triangle ABC drawn to side AC AC .

Therefore, the median of the triangle is BE BE for AC AC .

Answer:

BE for AC

Frequently Asked Questions

How do you find the median of a triangle step by step?

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To find a triangle median: 1) Identify a vertex and the opposite side, 2) Find the midpoint of the opposite side by dividing its length by 2, 3) Draw a line segment from the vertex to this midpoint. This line segment is the median, and it divides the opposite side into two equal parts.

What is the difference between median, altitude, and angle bisector in triangles?

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A median connects a vertex to the midpoint of the opposite side. An altitude is perpendicular from a vertex to the opposite side. An angle bisector divides an angle into two equal parts. In equilateral triangles, all three are the same line, while in isosceles triangles, they coincide only for the vertex angle.

How many medians does every triangle have and where do they meet?

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Every triangle has exactly 3 medians - one from each vertex to the midpoint of the opposite side. All three medians always intersect at a single point called the centroid, which divides each median in a 2:1 ratio from vertex to midpoint.

What is the median to hypotenuse rule in right triangles?

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In a right triangle, the median drawn to the hypotenuse equals half the length of the hypotenuse. If the hypotenuse is 10 units, then the median to the hypotenuse is 5 units. This creates two equal segments from the right angle vertex to each end of the hypotenuse.

How do you calculate the area when a median divides a triangle?

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When a median divides a triangle, it creates two smaller triangles with equal areas. Each smaller triangle has an area equal to half the original triangle's area. Use the formula: Area = (base × height) ÷ 2, where the base is half the original side length.

What are the special properties of medians in isosceles triangles?

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In an isosceles triangle, the median drawn from the vertex angle (between the two equal sides) has special properties: it is also the altitude (height) and the angle bisector. This median is perpendicular to the base and divides the vertex angle into two equal parts.

How do you solve triangle median problems involving multiple medians?

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For problems with multiple medians: 1) Use the fact that medians bisect sides to find segment lengths, 2) Apply the equal area property - medians create triangles with equal areas, 3) Remember that all medians meet at the centroid, 4) Use specific triangle properties (right, isosceles, equilateral) when applicable.

What grade level typically learns about triangle medians in geometry?

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Triangle medians are typically introduced in middle school geometry (grades 7-8) and studied more extensively in high school geometry (grades 9-10). Students learn basic median properties first, then progress to more complex applications involving centroids and area calculations.

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