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Subjects>Math>Geometry

What is pi times 13?

Anonymous

∙ 12y ago

Updated: 4/28/2022

Pi sorta equals 3.14

3.14 x 13

40.82 (Approximate, but not by much)

Wiki User

∙ 12y ago

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Continue Learning about Geometry

What is the circumference of a circle if the radius is 13?

2 x 13 x pi = 81.68 Circumference of a circle = 2*pi*radius or pi*diameter Circumference = 2*pi*13 = 81.68140899

How do you find the perimeter and area of a circle?

perimeter (circumference): diameter times pi (3.14) area: radius times radius times pi (3.14) Area = pi*radius squared Circumference = 2*pi*radius or pi*diameter

What is the circumference of a circle whose area is 100 pi?

The formula for finding the area of a circle is pi times the radius squared. Let's find the radius of the circle. 100 pi/ pi= 100. Squarerooted, the radius is 10. The formula for finding the circumference of a circle is 2 times pi times the radius. So, plug in: 2 times pi times 10 equals 20 pi! Your final answer: 20 pi (or, if you use decimals, approximately 62.8)

Surface area of cone?

(pi times radius squared) plus (pi times radius times slant).

What is the circumference of a circle that has a radius of 38 inches in terms of pi?

The circumference C = 2 r times pi C = 76 inches times pi. pi = 3.141592654...

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