Question

the perimeter of trangle is 300m abd it's sides are 50,120,130 find it's area​

Answer 1

perimeter of triangle=300m

1st sides=50m

2nd side=120m

3rd side=130m

now

s=semiperimeter/2

=300/2

=150m

area of scalene triangle =underroot s(s-a)(s-b)(s-c)

=underoot 150(150-50)(150-120)(150-130)

=underoot 150×100×30×20

=underoot 15×10×10×10×10×3×2×10

now do the paring