Question

The length of two sides of a triangle are 12cm and 15em. if the perimeter of the

triangle is 38 cm. Find the length of it third side.​

Answer 1

Answer:

11cm

Step-by-step explanation:

number number of sides in a triangle=3

perimeter perimeter of the triangle=38cm

length of first side =12cm

length of second side =15 CM

let the length of third side be x

according to question

38cm= 12cm+15cm+x

38cm=27cm+x

x=38cm-27cm

x=11cm