Find the diameter of a circle whose circumference is equal to the sum of circumference of circle with radii 10 cm, 12cm and 18cm
prachi2910:
Can u plz clarify....
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Answered by
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Hey..
Sum of circumferences of the three circles,
=2*22/7*10+2*22/7*12+2*22/7*18
=440+528+792/7
=1760/7.
Now, ATQ,
Circumference of the third circle=1760/7
=2*22/7*r=1760/7
r=1760*7/44*7
r=40cm.
Therefore,
Diameter=80cm.
Hope this helps you!!!!
Sum of circumferences of the three circles,
=2*22/7*10+2*22/7*12+2*22/7*18
=440+528+792/7
=1760/7.
Now, ATQ,
Circumference of the third circle=1760/7
=2*22/7*r=1760/7
r=1760*7/44*7
r=40cm.
Therefore,
Diameter=80cm.
Hope this helps you!!!!
Answered by
0
https://www.math10.com/en/geometry/trigonometry-and-geometry-conversions/trigonometry.html
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