Calculate Triangle Area: Right Triangle with Base 10 and Height 9

Calculate the area of the triangle using the data in the figure below.

101010999AAABBBCCC

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Calculate the area of the triangle
00:02 Apply the formula for calculating triangle area
00:04 (base x height) divided by 2
00:07 Substitute in the relevant values according to the given data and proceed to solve to find the area
00:10 This is the solution

Step-by-step written solution

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1

Understand the problem

Calculate the area of the triangle using the data in the figure below.

101010999AAABBBCCC

2

Step-by-step solution

To solve this problem, we'll follow these steps:

  • Step 1: Identify the given information
  • Step 2: Apply the appropriate formula
  • Step 3: Perform the necessary calculations

Now, let's work through each step:

Step 1: We are given that AC=9 AC = 9 (the height) and BC=10 BC = 10 (the base) of the triangle.

Step 2: We'll use the formula for the area of a triangle: Area=12×base×height \text{Area} = \frac{1}{2} \times \text{base} \times \text{height} .

Step 3: Plugging in our values, we have:

Area=12×10×9=12×90=45.\text{Area} = \frac{1}{2} \times 10 \times 9 = \frac{1}{2} \times 90 = 45.

Therefore, the area of the triangle is 45 45 .

3

Final Answer

45

Practice Quiz

Test your knowledge with interactive questions

Complete the sentence:

To find the area of a right triangle, one must multiply ________________ by each other and divide by 2.

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