find the diameter of a circle whose circumference is 66 cm
Answers
Answered by
72
Circumference of circle = 66 cm.
=> 2* pi *r = 66
=> 2* 22 *r/7 = 66
=> r = 66*7/22*2
=> r = 3*7/2
=> r = 21/2
Diameter = 21 cm
=> 2* pi *r = 66
=> 2* 22 *r/7 = 66
=> r = 66*7/22*2
=> r = 3*7/2
=> r = 21/2
Diameter = 21 cm
Answered by
51
Hii !!!
it is ur answer
circumference= 2pie r
2×22/7×r=66
r= 66×7/2×22
r=3×7/2
r=3×3•5
r=10•5cm
diameter=2×radius
d= 2×10•5
d=21cm
it is ur answer
circumference= 2pie r
2×22/7×r=66
r= 66×7/2×22
r=3×7/2
r=3×3•5
r=10•5cm
diameter=2×radius
d= 2×10•5
d=21cm
chandnirawat:
most welcome
yeah It helped me
any more help from me
wait
can u write all the formulas for finding radius diameter etc in circle
I will be thankful for it
If area is given so we can find radius by this formula 2*pie*r
ok
tjis is also in the case where circumference is given
diameter =2×radius
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