chasedavis772 chasedavis772
  • 20-04-2018
  • Mathematics
contestada

If the area of a circle measures 25π cm2, what is the circumference of the circle in terms of π?

Respuesta :

geerky42
geerky42 geerky42
  • 20-04-2018
Two formulas here:

Area = πr²

Circumference = 2πr

So first we solve for r from area:

25
π = πr²

25 = r²

r = 5

So we know that radius is 5 cm.

Now substitute r to 5 in circumference formula:

C = 2π(5) = 10π

Final answer: 10π cm

Hope this helps.
Answer Link
djxpool6
djxpool6 djxpool6
  • 14-02-2019

Answer:

10[tex]\pi[/tex] cm

Step-by-step explanation:

Answer Link

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