Question

The sides of a triangle are 7 cm 24 cm and 25 cm find its area using heron's formula

Answer 1

Step-by-step explanation:

a =7

b=24

c=25

semi perimeter of triangle = a+b+c÷2

=7+24+25÷2

=28

s= 28

area of triangle using Hero's formula=

$\sqrt{s(s - a)(s - b)(s - c) }$

= 84 cm square