Find the circumference and area of a circle with radius of 7 feet. Use pi = 3.14 and round your answers to the

Question

Find the circumference and area of a circle with radius of 7 feet. Use pi = 3.14 and round your answers to the hundredth.

C = 21.98ft and A = 615.44ft squared

C = 43.96ft and A = 153.86ft squared

C = 21.98ft and A = 153.86ft squared

C = 43.96ft and A = 615.44ft squared

Answer 1

c = 2 x 7 x 3.14 = 43.96
A = 3.14 x 7 x 7 = 153.86

2nd one.

Answer 2

Circumference:
= 2(pi)r^2
= 2 * 3.14 * 7
= 43.96 feet

Area:
= pi*r^2
= 3.14 * 7^2
= 3.14 * 49
= 153.86 square feet

Answer: the 2nd c = 43.96 & a = 153.86 among the 4 choices is the best choice.

Answer 3

A=area=pi r *r
C=perimeter=2 .pi.r

r=7
pi=3.14
A=area=3.14*7*7=153.86
C=perimeter=2*3.14*7=43.96

Answer:
C = 43.96ft and A = 153.86ft squared

Answer 4

C = 43.96ft and A = 153.86ft squared

Ccircle = 2(Pi)(R)
Cc = 2(3.14)(7)
Cc = 43.96 ft

Ac = (Pi)(R^2)
Ac = 3.14(7^2)
Ac = 3.14(49)
Ac = 153.86 ft^2

Answer 5

Why don't you just ask all your questions in one post?

answer is the 2nd one