Question

The right triangle below is dilated by a scale factor of one half
2
1
​
. Find the perimeter of the dilated right triangle. Figures are not necessarily drawn to scale.
15
8
17
Answer
Attempt 1 out of 2

Answer 1

The original triangle has sides 8, 15, and 17, so its perimeter is 8+15+17 = 40. A dilation by 1/2 multiplies all lengths by 1/2, so the new perimeter is 40 × 1/2 = 20.