atthetone atthetone

17-02-2017
Mathematics

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Having trouble working out and getting the answer for #5

Having trouble working out and getting the answer for 5 class=

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padawan padawan

17-02-2017

patio area = backyard area - pool area
= 7x10 - (pi)2^2 = 57.43 sq.cm
1cm = 3ft ; 1 sqcm = 9 sq.ft
patio area = 57.43x9 = 516.87
answer is b
[decimal difference us due to value of pi ]

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