The area of a circle in terms of the circle's radius

is

Differentiating both sides with respect to

, you get
Answer:
1.28 or 128
Step-by-step explanation:
you would take 32 and divide it by.25
I would say 36.8
But I am it sure
The first one is B because of the first attachment. The second one is A because of the second attachment. The third one is C because of the expression used to solve for sum of angles:
(n-2)180
(8-2)180
1080
Hope this helps!