If the radius of a circle is 21 cm. Find its area and circumference.
A. 152 cm
B. 132 cm
C. 142 cm
D. 122 cm

Question

If the radius of a circle is 21 cm. Find its area and circumference.A. 152 cmB. 132 cmC. 142 cmD. 122 cm​

Rirrii · Answer

Given:r = 21 cmAnswer:I think its looking for the circumference so its B.132 cm.Solution:Area of the circle;A=πr2   = (π) x (21²)   ≈1385.44Circumference; C=2πr   = 2 (π) (r)   = 2 (π) (21)   ≈131.95

MissssHailey · Answer

AREA AND CIRCUMFERENCE OF CIRCLE If the radius of a circle is 21 cm. Find its area and circumference.SOLUTION:[tex]\sf Radius = 21\: cm[/tex][tex]\sf Area, A = π × r²[/tex][tex]\quad[/tex][tex]\sf A = \frac{22}{7} × 21 × 21[/tex][tex]\quad[/tex][tex]\begin{gathered}{\blue{\boxed{\sf{\purple {A = 1386\:cm²}}}}}\end{gathered}[/tex][tex]\sf Circumference, C = πr[/tex][tex]\quad[/tex][tex]\sf C = 2 × \frac{22}{7} × 21 [/tex][tex]\quad[/tex][tex]\begin{gathered}{\blue{\boxed{\sf{\purple {C = 132\:cm}}}}}\end{gathered}[/tex]FINAL ANSWER:Therefore, the correct Answer is 132 cm (option B)[tex]\[/tex]❤

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If The Radius Of A Circle Is 21 Cm. Find Its Area And Circum…

AREA AND CIRCUMFERENCE OF CIRCLE

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AREA AND CIRCUMFERENCE OF CIRCLE

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