parissscx
parissscx
22-02-2017
Mathematics
contestada
The answer to all of these problems
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ChandrikaP
ChandrikaP
23-02-2017
1) area of a cicular pool
area of a circle=πr^2 d=2.5 then r=2.5/2
A=3.14 *(2.5/2)^2
A=4.906m^2 A=4.9m^2
2) arae of a coin
(if i read it right d=15mm?)
A=πr^2 d=15 then r=15/2
A=3.14*(15/2)^2 =176.6mm^2
Rest all are same problems u try to solve it
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