Question

A circular picture is 8 inches in diameter.

Part A

What is the area of the picture in square inches?

A. 4π square inches
B. 8π square inches
C. 16π square inches
D. 32π square inches

Part B
A frame that is 2 inches wide surrounds the picture. What is the total area of the picture and the frame in square inches?

A. 4π square inches
B. 12π square inches
C. 36π square inches
D. 40π square inches

Answer 1

@DangerousJesse

Answer 2

\(A = \pi r^2\)

Answer 3

Radius is two times the diameter, so \(\large \frac{8}{2}=?\)

Answer 4

4

Answer 5

So \(A=\pi 4^2\) or \(\pi 4\) squared.

Answer 6

so a is a correct?

Answer 7

Add two inches to the radius to get six, and you get \(\pi 6^2=a\) yes, it's a.. I don't understand part b though

Answer 8

hmmm

Answer 9

@phi can u help?

Answer 10

which part?

Answer 11

B

Answer 12

can you sketch the problem (to see what they are talking about) ?

Answer 13

well there is no pickture it just says: A frame that is 2 inches wide surrounds the picture. What is the total area of the picture and the frame in square inches?

Answer 14

so they want to know the total area of the picture and the frame in square inches?

Answer 15

Yes, and to make sense of that we (or I) would sketch what I think it looks like

Answer 16

ok