Question

The perimeter of an isosceles triangle is 38 cm. If its base is 10 cm,Find the length of each ​

Answer 1

hb≈13.08cm

b Base

10

cm

P Perimeter

38

cm

Using the formulas

P=2a+b

hb=a2﹣b2

4

Solving forhb

hb=1

2P(P﹣2b)=1

2·38·(38﹣2·10)≈13.0767cm