The circumference of a circle is 12.56 cm. what is the area?
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Answered by
4
Hi ,
Let radius of the circle = r cm
It is given that ,
circumference of the circle = 12.56 cm
2πr = 12.56 cm
r = 12.56/( 2π )
r = 6.28/π cm
Now ,
Area of the circle = π r²
A = π ( 6.28/π )²
A = ( 6.28 × 6.28 )/π
A = ( 6.28 × 6.28 × 7 )/22
A = 12.548 cm²
I hope this helps you.
: )
Let radius of the circle = r cm
It is given that ,
circumference of the circle = 12.56 cm
2πr = 12.56 cm
r = 12.56/( 2π )
r = 6.28/π cm
Now ,
Area of the circle = π r²
A = π ( 6.28/π )²
A = ( 6.28 × 6.28 )/π
A = ( 6.28 × 6.28 × 7 )/22
A = 12.548 cm²
I hope this helps you.
: )
Answered by
8
Hiii friend,
Circumference of circle = 12.56
2πR = 12.56
2 × 22/7 × R = 12.56
R = 12.56×7/44 = 1.99 cm
Therefore,
Area of circle = πR² = 22/7 × 1.99×1.99 = 87.1222/7 = 12.44 cm².
HOPE IT WILL HELP YOU...... :-)
Circumference of circle = 12.56
2πR = 12.56
2 × 22/7 × R = 12.56
R = 12.56×7/44 = 1.99 cm
Therefore,
Area of circle = πR² = 22/7 × 1.99×1.99 = 87.1222/7 = 12.44 cm².
HOPE IT WILL HELP YOU...... :-)
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