Answer:

Explanation:
In an isosceles triangle,
Each of two equal sides = 2x + 3
Third side = 2x
Perimeter = 36
We know that,
Perimeter = Sum of all sides
So,
36 = 2x + 3 + 2x + 3 + 2x
36 = 2x + 2x + 2x + 3 + 3
36 = 6x + 6
- Subtract 6 from both sides
36 - 6 = 6x
30 = 6x
30/6 = x
5 = x
OR
x = 5
Now,
The length of all three sides:
Side 1 and 2:
= 2x + 3
= 2(5) + 3
= 10 + 3
= 13
Side 3:
= 2x
= 2(5)
= 10
![\rule[225]{225}{2}](https://img.qammunity.org/2024/formulas/mathematics/high-school/yk3l6bxs46equldxx0z8qla0zuvm8l328e.png)