Question

find the area of an isosceles triangle whose base is a ans equal sides are b

Answer 1

Step-by-step explanation:

We know, in isosceles triangle altitude , is bisect to base.

so, Altitude = √(side length of equal side )² - (base/2)² } = √(b² -a²/4)

now, area of isosceles triangle = 1/2 × altitude × base

= 1/2 × √(b² - a²/4) × a

= 1/4 × a × √(4b² - a²)

4.6