find the radius of a circlele whose circumfernce is 57.2 cm
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Answered by
1
circumference of a circle is= 2 x pi x r
57.2=2 x pi x r
r=57.2/(2pi)
therefore the radius is=9.09cm
hope this helps!!
57.2=2 x pi x r
r=57.2/(2pi)
therefore the radius is=9.09cm
hope this helps!!
saurabh88:
wrong
its right my friend the value 9.09 can be rounded off to 9.1.
ok
Answered by
3
circumference of circle =57.2cm
2πr=57.2
πR=57.2÷2=28.6
r=28.6×7/22
r=200.2/22
r=9.1cm
2πr=57.2
πR=57.2÷2=28.6
r=28.6×7/22
r=200.2/22
r=9.1cm
right
thank you
the circumference of a circle excceds its diameter by 30.find the radius of circle
2x pi x r - r/2 = 30 ;
4 x pi x r - r =60
r(4pi - 1) = 60
r=60/(4pi - 1)
put the value of pi and solve it further to derive to the answer
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