Question

prove that perimeter of isosceles triangle is a + 2x​

Answer 1

Answer :-

Isocellus triangle have equal two sides .

suppose one of them is x than sum of them is 2x and other side as a.

perimeter = 2x + a

Hence proved.

Answer 2

Let base is a

And one side is x

Therefore perimeter

= x +x +a

=2x + a