A square ground has 3m wide path all around iit. The total area of ground and path is 900m^. (a) If the side of ground is x, what is the side of ground +part?
(b) what is the area of ground?
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Answer:
a.x+6
b.5184
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Step-by-step explanation:
a.
because the road is all around the the ground the side of ground + road = x+3+3
x+6
b.
area of ground =x×x=x²
area of ground with road = (x+6)(x+6)
=x²+36+12x
area of road = (x²+36+12x)-x²
=36+12x=900
12x=864
x=864/12=72
thus area of sqaure ground = 72×72=5184
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