Question

The side of a triangle are :3.7 cm and 4.5 cm. If its perimeter is 15cm if its third side

Answer 1

Step-by-step explanation:

3.7+4.5+t=15

8.2+t=15

t= 15-8.2

therefore t=6.8cm

Answer 2

let third side be x cm

perimeter of triangle =side+side +side

15cm=3.7cm+4.5cm+x cm

15 cm=8.2cm+x cm

15cm-8.2cm=x

6.8cm=x

so third side is 6.8cm