Find each angle measure to the nearest degree. Use DESMOS graphing calculator and change settings to Degrees. 1) sin B = 0.8572 2) tan U = 0.3249
3) cos B = 0.6157 4) tan U = 0.2309
5) tan U = 2.7475 6) tan A = 0.2867
7) tan Z = 0.3839 8) sin B = 0.3090
( I missed a week of school and do not understand any of this ;p)

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?