Someone plz, math help...?

Question

Find the circumference of a circle if the AREA is 100 pie sq. centimeters.

plz tell me how to solve thx...

Answer 1

area=pie*r^2, so r^2=100 and r=10

Circumference= 2*pi*r=20*pie

Answer 2

Find the circumference of a circle if the AREA is 100 pie sq. centimeters.

jin ^.^ here it is

Given

Area of Circle = 100π  sq cm.

Area of Circle = πR² ← formula for Area of a Circle

R² = 100π/π ← π cancel out

R = 10 cm

Circumference of Circle = 2 π R  Ã¢Â†Â Formula for Circumference of a Circle

Substituting our R = 10 cm

Circumference of Circle = 2 π (10)

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Ans::: Circumference of Circle = 20π  cm

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Hope this will helps

Answer 3

Area of circle formula  A= pie* r^2 which r = radius

according toproblem A= 100 pi therefore 100pi = pi*r^2

so 100= r^2

r = +/- 10 but since r is radius therefore no negative number

so r= 10

circumference P= 2pi*r = 2*pi*10 = 20*pi centimeters final answer