If angle B is 40°, and side c is 32m, find the length of side b to the nearest tenth of
a metre.

+25 = x

step-by-step explanation:

here x is the hypotenuse of a right triangle whose legs are 7 and 24.   by the pythagorean theorem, 7² + 24² must equal x²:

x² = 49 + 576 = 625.   thus, x = +√625 = +25 = x

a is the right answer

a - base

b - exponent

so,