the sum of circumference and the radius of a circle is 51 cm, find the radius of the circle
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"circumference+radius=51cm"
therefore,
circumference of circle=2πr=2×r×3.142=6.2857r
and let radius =rcm
"circumference+radius=51cm"
therefore,
6.2857r+r=51
r(6.2857+1)=51
r(7.2857)=51
r=51/7.2857
r=7.0cm
....
therefore radius of a circle is 7 cm
....
thank u
therefore,
circumference of circle=2πr=2×r×3.142=6.2857r
and let radius =rcm
"circumference+radius=51cm"
therefore,
6.2857r+r=51
r(6.2857+1)=51
r(7.2857)=51
r=51/7.2857
r=7.0cm
....
therefore radius of a circle is 7 cm
....
thank u
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