Question

Find the length of the missing side. If necessary, round to the nearest tenth.

Answer 1

The pythagorean theorem states that the sum of the squares of two legs of a right triangle is equivalent to the hypotenuse.

So:

35^2 + b^2 = 40^2

1225 + b^2 = 1600

b^2 = 375

b = $\sqrt{375}$

b = 19.3649

The missing side's length rounded to the nearest tenth is Option C, 19.4