Question

The perimeter of an isosceles triangle is 18 cm. If one of the equal sides is 5¾ cm long,
find the measure of the third side.​​

Answer 1

Answer:

length of equal side = 15/4

let the length of third side be x

then,acc.to question

x + 15/4 +15/4 = 18

x+ 30/4 =18

x = 18 - 30/4