Question

Find the perimeter of the right triangle. If necessary, round to the nearest tenth. 12 mi 16 mi 20 mi b. 16 mi C. 48 mi d. 96 mi​

Answer 1

C. 48 mi

Explanation:

Pythagorean Theorem: a² + b² = c²

P = a + b + c

Since we have a right triangle, we can find the missing side length and figure out our perimeter.

Step 1: Find missing length

12² + 16² = c²

144 + 256 = c²

400 = c²

c = 20

Step 2: Find perimeter

P = 12 + 16 + 20

P = 28 + 20

P = 48