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2 years ago

9

PLEASE HELP WILL MARK BRAINLIESTonly number 8

2 answers:

erastova [34]2 years ago

8 0

Answer:

a=646.84 c=113.04

Step-by-step explanation:

olasank [31]2 years ago

3 0

Answer:
Area is = to 1017.88
Circumference is = to 113.1
Step-by-step explanation:
To find the area of a circle use the formula A=πr2
So . . .
A = π18²
A = π324
A = 1017.88
To find the circumfrence of a circle use formula C=2πr
So . . .
C = 2π18
C= 113.1
Hope this helps
Brainliest please!

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