Question

Q.2 Two sides of a triangle are 15 cm and 14 cm. The perimeter of the
triangle is 40 cm. What is its third side?​

Answer 1

Answer:

11cm

Step-by-step explanation:

Using the formula

P=a+b+c

c=P﹣a﹣b=40﹣15﹣14=11cm

Answer 2

Let required side be x.

Perimeter = A+B+C

40cm = 15+14+x

40 =29+x

x=40-29

x=11

Hope this was helpful