The perimeter of an isosceles triangle is 30 cm; its base is 12 cm. The side of the square is 2 cm shorter than

The perimeter of an isosceles triangle is 30 cm; its base is 12 cm. The side of the square is 2 cm shorter than the side of the triangle. Find the perimeter of the square.

To solve the problem, you first need to find the sum of the sides of the triangle.

To do this, subtract the length of the base from the value of the perimeter of the triangle.

We get:

30 – 12 = 18 cm.

Find the length of the side of the triangle.

To do this, divide 18 cm into 2 sides.

We get:

18/2 = 9 cm.

Find the side length of the square.

Since it is 2 cm less than the side of the triangle, we get:

9 – 2 = 7 cm.

Find the perimeter of the square.

To do this, multiply the side of the square by the number of sides.

We get:

7 * 4 = 28 cm.

Answer: 28 cm.