Answer:
point D: (2, -4)
Step-by-step explanation:
Well, split into two parts then multiply the sides and then round it to the nearest tenth.
The unit circle is a circle with radius

, so you have

where

is measured in radians, so

.
Answer:
Decimal Form:
4.99873244
Step-by-step explanation:
geometry is the worst. but i have a way to remember how to find the area. (Apple Pies are too --> A=πr^2 --> area = pie×radius^squared) so basically you sub in 78.5 in for area and then you solve for r.
Hope i helped kinda lol