the circumference of a circle is eight times the circumference of the circle with radius 12cm . find its diameter
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Answered by
80
Let the radius of first circle be a
Radius of second circle = 12 cm
According to question
C1 = 8* C2
=> 2* pi *a = 8*2*pi *12
=> a = 8*12
=> a = 96
Diameter = 2*96
= 192 cm
Hope this is correct and will help you
Please mark as brainliest if you liked the solution
Radius of second circle = 12 cm
According to question
C1 = 8* C2
=> 2* pi *a = 8*2*pi *12
=> a = 8*12
=> a = 96
Diameter = 2*96
= 192 cm
Hope this is correct and will help you
Please mark as brainliest if you liked the solution
shahala1:
what *
thanks but can you please tell what is *
the Circumference of one circle is 8 times the Circumference of other circle
2 pi R1 = 8 * 2 pi * R2
thank s is * is multiplying sign
R1 = 8 * R2
yup..
thank you
ur welcome
please can you do it on paper with som bit more explanation
Answered by
31
let the radius be r
r=12cm
circum1 = 8(circum2)
2*pi*r = 8(2*pi*r)
r=8*r
r=8*12
r=96
then, diameter = 2*r
= 2*96
= 192 cm
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