Question

in ∆ABC, angle B = angle C, AB = 5 cm and BC = 8 cm, then find the perimeter of ∆ABC.​

Answer 1

Answer:

18 cm

Step-by-step explanation:

In Triangle ABC,

The base angles,

angle B = angle C

Therefore,

Triangle ABC is an isosceles triangle

Therefore,

AB = AC

AC = 5 cm

Now,

Perimeter = AB + AC + BC

                = 5 + 5 + 8

                = 18 cm