Look at the triangle below.
AB = AC
What type of triangle is it?
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Look at the triangle below.
AB = AC
What type of triangle is it?
To solve this problem, we'll follow these steps:
Now, let's work through each step:
Step 1: The problem states that . This means two sides of the triangle are equal.
Step 2: In triangle classification by sides, if two sides are equal, it is known as an isosceles triangle.
Therefore, the type of triangle we are dealing with here is an isosceles triangle.
The correct multiple-choice selection is: Isosceles (choice ID 2).
Isosceles
Is the straight line in the figure the height of the triangle?
Isosceles triangles have exactly two equal sides, while equilateral triangles have all three sides equal. Since we only know AB = AC, this is isosceles.
A scalene triangle has no equal sides at all. Since we're told AB = AC, two sides are equal, so it cannot be scalene.
Look for visual clues: isosceles triangles often appear symmetric with two sides that look the same length. But always rely on the given measurements, not just appearance!
Yes! In an isosceles triangle, the base angles (angles opposite the equal sides) are always equal to each other. This is a key property to remember.
Possibly! A triangle can be both isosceles and right if it has two equal sides and one 90° angle. But based only on AB = AC, we can definitively say it's isosceles.
Focus on what you know for certain: AB = AC means exactly two sides are equal. This is the definition of isosceles, so that must be the correct answer!
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