The area enclosed between two concentric circles is 770 cm². If the radius of the outer circle is 21 cm, find the radius of the inner circle.

The area enclosed between two concentric circles is 770 cm². If th

1.	The area enclosed between two concentric circles is 770 cm². If the radius of the outer circle is 21 cm, find the radius of the inner circle.
A.	10 cm
B.	14cm
C.	19 cm
D.	27 cm
Answer» C. 19 cm

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The area enclosed between two concentric circles is 770 cm². If the radius of the outer circle is 21 cm, find the radius of the inner circle.

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