the circumference of a circle exceeds its diameter by 18 cm find the radius and area of the circle
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Answered by
15
Heya!
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Diameter is exceeded by 18cm, that means,
Circumference-Diameter= 18cm
Radius=?
Let Radius be 'x'
Circumference of circle=2πr
2πr-2r=18
2×22/7×x - 2x= 18
44/7 x - 2x= 18
44x -14x/7 = 18
30x=126
x=126/30
x=4.2 cm
Radius= 4.2cm
Area= ?
Area of circle= πr^2
Area= 22/7×4.2×4.2
Area= 55.3896 cm^2
___________________________
Hope it helps...!!!
___________________________
Diameter is exceeded by 18cm, that means,
Circumference-Diameter= 18cm
Radius=?
Let Radius be 'x'
Circumference of circle=2πr
2πr-2r=18
2×22/7×x - 2x= 18
44/7 x - 2x= 18
44x -14x/7 = 18
30x=126
x=126/30
x=4.2 cm
Radius= 4.2cm
Area= ?
Area of circle= πr^2
Area= 22/7×4.2×4.2
Area= 55.3896 cm^2
___________________________
Hope it helps...!!!
Answered by
3
I think it will be the answer.
It is 55.44 cm^2
I m not sure.
It is 55.44 cm^2
I m not sure.
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