Question

The lengths of the sides of a triangle are 12cm, 16cm, and 20cm. Is the triangle a right triangle?

-yes
-no

Answer 1

yes

Explanation:

To determine if the triangle is right

If the square of the longest side is equal to the sum of the squares on the other 2 sides then it is right.

longest side = 20 and 20² = 400

12² + 16² = 144 + 256 = 400

Thus the triangle is right