Question

Find the perimeter of the isosceles triangle in simplest form. x2 + 20 units 2x units

Answer 1

The perimeter of an isosceles triangle is given by:

`P\text{ = 2a + b}`

From the question, b = 2x; a = x^2 + 20

`P\text{ = 2a }+b=2(x^2+20)+2x=2x^2+40\text{ + 2x}`
`P=2x^2\text{ + 2x + 40}`