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I need help on questions 6 and 7 please

I need help on questions 6 and 7 please
21.1k views
3 votes
I need help on questions 6 and 7 please

I need help on questions 6 and 7 please-example-1
User Majd
by
7.9k points

1 Answer

3 votes
We know that the area of a circle is A=pi(radius-^2)
And the circumference formula is C=2(pi)(r)

6) what I did was plug in those diameters in the formula. So
C=2(3.14)(7.5)=41.1
B IS YOUR ANSWER (15)

7)20^2(3.14)=1256
B IS YOUR ANSWER (20)
User Olivier Tassinari
by
8.3k points
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