Question

Please solve for bc, only need answer, not work.

Answer 1

BC = 9

Explanation:

In order to solve for BC, we have to use the Pythagorean Theorem:

`a^(2) + b^(2) = c^(2)`

Substituting the values we are given into this equation, we can solve as follows:

1.
`12^(2) + x^(2) = 15^(2)`

2.
`x^(2) = 15^(2)- 12^(2)`

3.
`x^(2) =225-144`

4.
`x^(2) =81`

5.
`x = 9, -9`

Since distance cannot be negative, we know -9 cannot be the answer and we are left with 9.