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Find the cost of levelling the …

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Find the cost of levelling the ground in the form of a triangle it's side are 40cm 70c 90 cmat RS 8 per square meter root 5 =2.24

Posted by Subojit Dey 7 years, 9 months ago

CBSE > Class 09 > Mathematics

1 answers

Omkar Kumar 7 years, 9 months ago

s=a+b+c/2 40+70+90/2=100 Area of triangle =√s(s-a) (s-b) (s-c) =√(100-40)(100-70)(100-90) =√60*30*10 =√30*2*30*5*2 =60√5 =60*2.24 =134.4 =134.4*8 =0.134*8 =10.752

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CBSE > Class 09 > Mathematics