Question

In triangle abc a+b=11 cm bc=13cm and c+a=12cm find its perimeter

Answer 1

by simplifing

a=132/25

b=143/25

c=25/11

Perimeter of the triangle is=a+b+c

=132/25+143/25+25/11

=(3025+625)/275

=3650/275

=13.27

Perimeter is 13.27cm