Question

Please help with this, will give brainliest.

Answer 1

Answer:

$\text{B. }12.6$

Step-by-step explanation:

The cut the construction worker makes forms two right triangles. Therefore, we can use the Pythagorean theorem to solve this problem:

The Pythagorean theorem states that for any right triangle, the following is true: $a^2+b^2=c^2$, where $a$ and $b$ are two legs of the triangle and $c$ is the hypotenuse.

$a^2+b^2=c^2,\\12^2+4^2=c^2,\\c^2=160,\\c\approx \boxed{\text{B. }12.6}$