Question

The area of triangle is 150cm^2 and its sides are in the ratio 3:4:5.
what is its perimeter?​

Answer 1

Explanation:

area =half ×base×height

150=1/2×3x×4x

150=6x

x=150/6

x=25

3x=25×3=75

4x=4×25=100

5×=5×25=125

perimeter=a+b+c

=75+100+125=275

here i took base=3x

height=4x

hyp=5x

Answer 2

Answer:

Firstly,

s= a+b+c/2

= 3+4+5/2

=6

By heron's formula

6x^2 we get

Area= 150

6x^2=150

x^2=25

x=5 cm