Question

find the perimeter of a triangle with the length of side 7 by 10cm 2 by 5 cm and 3 by 2 cm

Answer 1

perimeter=7/10+2/5+3/2
=7+4+15/10
=26/10cm
OR
=2.6cm

Answer 2

perimeter of triangle = sum of all sides
= 7/10+2/5+3/2
= 7/10+4/10+15/10
= 26/10
= 2.6