Question

The sides of a triangle are p,q,r.If p+q=45,q+r=40and p+r=35 then find the area of the triangle

Answer 1

P+Q+R=120÷2=60

(P+Q+R)÷2=30=S

P=20,Q=25,R=15

√(30(30-25)(30-20)(30-15))=150