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osman123 | 11:52 Sat 10th Jan 2009 | Quizzes & Puzzles
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if the circle diameter is 12.3cm what will the cicumferance and the area of the sircle be ?
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Circumference=2x22/7x6.15
Area=22/7x6.15x6.15

Haven't a calculator to hand - the 22/7 (22 divided by 7) is pie
Circumference = Pi X d = 3.142 x 12.3 = 38.6 cm
area = Pi x r x r = 3.142 x 6.15 x 6.15 = 118.8 cm squared
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thank you soo muchz

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