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please solve this question if you are intelligent.................
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moni3614:
answer is base =15& height=15+7=21
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Let the base = x
Then, the altitude = x+7
Area = 165
Area = 1/2*x*(x+7)
165*2 = x^2 + 7x
x^2+7x-330=0
By middle term factorisation,
x^2+22x-15x-330=0
x(x+20)-15(x+20)=0
(x+20)(x-15)=0
x-15=0
x=15
Therefore,
Base=15
Altitude = 15+7
= 22
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