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Example (3):
The area of a circle is 25 ?? Find its circumference in term
of ??
Area of circle = p x ????
25 ?? = p x ????
r = 5 cm
Circumference of circle = 2p x r
= 2 x p x 5 = `10 p cm
Example (4):
The circumference of a circle is 88 cm .Find its area
r=C÷2p
r = 88 ÷ 2 x ???? = 14 cm
??
Area of circle = p x ????
= ???? x ?????? = 616 ??????
??
1ST TERM MATH-PREP.2
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