Page 41 - E booklet prep 2_Neat
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Example (1):
A Circle is of radius length 7 cm Find each of its
circumference
And its area
Circumference of circle = 2p x r
= 2 x ???? x 7 = 44 cm
??
Area of circle = p x ????
= ???? x ???? = 154 ??????
??
Example (2):
The area of a circle is 154 cm2 Find its circumference and
its diameter
r = v?? ÷ ??
= v?????? ÷ ???? = 7 cm
??
D = 2 x 7 = 14 cm
Circumference = ???? x 7 = 22 cm
??
1ST TERM MATH-PREP.2
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