find the circumference of the circle whose diameter is 91 cm
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Step-by-step explanation:
diameter = 91
radius = diameter ÷ 2
= 91 ÷ 2
= 45.5 = radius
cicumference of circle = 2πr
= 2 × 22/7 × 45.5
= 22/7 × 91
= 22× 13
= 286cm answer
hope its helpfull to you.
Answered by
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Answer:
Given that ;
Diameter of the Circle ( d ) = 91 cm
Radius of the Circle ( r ) = d / 2
= 91 / 2
Radius of the Circle = 45.5 cm
Circumference = ?
Formula :
Circumference of the Circle = 2 π r
C = 2 × 22 / 7 × 45.5
C = 2 × 22 × 6.5
C = 286 cm
Hence ;
Circumference of the Circle ( C ) = 286cm
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