Question

What is the height of this triangle? Round your answer to the nearest tenth.

A) 11.4 units
B) 11.5 units
C) 5.7 units
D) 5.6 units

Answer 1

5.7

Explanation:

pythagorean theorem

A^2 + B^2 = C^2

sub in

A^2 + 7^2 = 9^2

simplify

A^2 + 49 = 81

solve

A^2 = 32

solve further

A =
`\sqrt{32`

use calculator and get:

5.65685

round and get:

5.7