Question 7 of 10 What is the length of BC in the right triangle below?

Question

asked Dec 21, 2022 220k views

2 Answers

Denis Agarev · Answer 1 · 2022-12-28T02:02:51+0000

Answer:

A

Explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

BC² = 9² + 12² = 81 + 144 = 225 ( take the square root of both sides )

BC =
√(225) = 15 → A