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mariarad [96]
3 years ago
11

Find the circumference of the circle. Round to the nearest tenth.

Mathematics
2 answers:
Natasha_Volkova [10]3 years ago
8 0

Formula for the circumference of a circle: C = pi x diameter

We are given the radius here, but we need the diameter. The diameter of a circle is equal to two times the radius.

diameter = 40 x 2 = 80 in

C = pi x 80

C = 80pi = 251.3 in

Hope this helps!! :)

Rus_ich [418]3 years ago
5 0

Answer:

251.3 in

Step-by-step explanation:

The formula for circumference is π·d

Double 40 to get your radius, 80

Then, multiply π·80

The circumference is about 251.3 in

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