Question

a traingle whose sides are 15 cm, 25 cm and 30 cm respectively then find area of its area

Answer 1

Area of triangle =√s(s-a)(s-b)(s-c)

s-Semi perimeter of triangle i.e (a+b+c)÷2

s=(15+25+30)÷2=35

Area=√35(35-15)(35-25)(35-20)=187.082