Question

Using Heron's Formula, find the area of an isosceles triangle, ​the measure of one of its equal sides being 'a' units and the ​third side '2b' units.

• A. $b\sqrt{a^2-b^2}sq.units$
• B. $a\sqrt{a^2+b^2}sq.units$
• C. $a\sqrt{a^2-b^2}sq.units$
• D. $b\sqrt{a^2+b^2}sq.units$

Answer 1

The correct option is A $b\sqrt{a^2-b^2}sq.units$