Question

The length of each of the two congruent sides of an isosceles triangle

is 2n +7 and the length of the third side is 3n

Draw and label the isosceles triangle.

Answer 1

To find the perimeter you add the length of all sides.

1). 2n + 7 + 2n + 7 + 3n = perimeter

2). 2(2n + 7) + 3n = perimeter

Explanation:

Hope this helps!! :)