20 POINT QUESTION! For 0° ≤ x < 360°, what are the solutions to sin(x/2) + cos(x) – 1 = 0 ? A. {30°, 150°}
B. {60°, 300°}
C. {120°, 240°}
D. {210°, 330°}

please only answer if you're certain!

What is the area of a pizza with a radius of 40 cm leave the answer in terms of π to find your exact answer 40π cm² 1600π cm² 800π cm² 80π cm² π=pi

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).