Question

The perimeter of an isosceles triangle is 18 cm. If one of the equal sides is 23/4 cm long, find the measure of the third side.

Answer 1

Answer: 13/2 cm

Step-by-step explanation:

Length of Equal sides = 23/4 cm.

Let third side be X cm

Perimeter of isosceles triangle = 18

2 × ( Equal sides ) + Third side = 18

2 × ( 23/4 ) + X = 18

23/2 + X = 18

23 + 2X = 36

2X = 36 - 23

X = 13/2 cm.

Third side = X = 13/2 cm.

Answer 2

Answer:

Given:-

• perimeter= 18cm
• side of equal side is 23/4cm

To find:-

• Third side?

Find:-

Perimeter= Sum of all side

18= 23/4 + 23+/4 + x

18=23/2+x

x= 18-23/2=13/2

Hence the side of third line is 13/2cm❤