Question

What is the perimeter of ABC, shown?

A. 18.83
B. 204.7
C. 29.04
D. 34.5

Answer 1

Option C - 29.04

Explanation:

A to C is 9

A to B is 8

C to B is ?

`a^(2) + b^(2) = c^(2)\\ 9^(2) + 8^(2) = c^(2)\\81 + 64 = 145\\c = √(145) \\c = 12.04`

Perimeter = a + b + c

= 9 + 8 + 12.04

= 29.04

Answer 2

The answer is C. 29.04
You use the Pythagorean theorem for the diagonal side because it’s a right triangle then you add all the sides and get C