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3 years ago

Find the circumference of a circle if the area is 300 square centimeters.

2 answers:

8 0

The answer is: [C]: 61.38 cm .
_______________________________________________

Note: A = $\pi *r$ ²

300 = (3.14) * r² ;
______________________
Divide each side by "3.14" ;

r² = 300/3.14 ;

r² = 95.5414012738853503 ;

√r² = √(95.5414012738853503) ;

r = 9.7745281867661188048

Circumference, "C" = $\pi$ * d ; (d = diameter = 2*r);

C = 2* $\pi$ *r ;

C = 2*(3.14)*(9.7745281867661188048)

C = 61.384037012891226094144 ; which rounds to answer choice:
[C]: 61.38 cm .
________________________________________________________

Nikitich [7]3 years ago

8 0

Answer:

C 61.38cm

Step-by-step explanation:

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