Question

the perimeter of a triangular field is 240m its two sides are 78m and50m then area of triangular field is

Answer 1

first take out the third side a*b*c/2 formula of semi perimeter
.

now after getting answer now formula of area of triangle √s(s-a)(s-b)(s-c) where s is semi perimeter and a ,b,c are sides of triangle .
Now you can find your answer

Answer 2

Hey there,
Perimeter=240 m
1st side=78 m 2nd side=50 m
3rd side=240-(78+50)
=112 m
Semi perimeter=240/2
=120 m
Area=√s(s-a)(s-b)(s-c)
=√120(120-78)(120-50)(120-112)
=√120×42×70×8
=√2822400
=1680 sq. m