Question

the perimeter of an isosceles triangle is 18 cm centimetre if one of the equal side is 23/4 cm long find the measure of the third side​

Answer 1

if equal side is 23/4=5.75

p=5.75+5.75+x

18-11.5=x

6.5=x

Answer 2

perimeter of triangle = sum of 3 sides

23/4 +23/4 + third side = 18cm

23/2 + third side = 18cm

third side = 18 - 23/2

= 13/2 cm

= 6.5 cm