The perimeter of a triangular field is 240 m its two sides are 78 m and 50 m, then area of triangular field is (1) 1650.2 m2 (2) 1662 m2 (3) 1680 m2 (4) 1672 m2
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perimeter = 240
a+b+c=240
a+b=128
c=240-128
112
a=78
b=50
c=112
by formula
herons formula
1680 is the answer
a+b+c=240
a+b=128
c=240-128
112
a=78
b=50
c=112
by formula
herons formula
1680 is the answer
varshneysamyakoxg8tj:
squareroot of(sx(s-a)x(s-b)x(s-c), where s=(a+b+c)/2 that is 120
120x(120-78)x(120-50)x(120-112)=2822400
square root of (2822400) =1680
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