Question

Atriangle whose sides are 15 cm, 25cm and 30cm respectively, then find the area of the triangle
​

Answer 1

Answer:

150√18

Explanation:

let sides of triangles = a,b,c

a=15

b=25

c=30

according to herons formula

finding semi perimeter = 15+25+30/2

s = 70/2

s. =45

now area =√s(s-a) (s-b) (s-c)

= √ 45(45-15)(45-25)(45-30)

=√45*30*20*15

=√5*9*5*3*2*5*2*2*5*3

=5*5*3*2√9*2

=150√18