Perimeter of a figure is the sum of its side lengths. In a square, all four sides are the same length. So, the perimeter of a square whose side length is 8.5 is 4 x 8.5 = 34.
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A square with a perimeter of 40 inches has sides 10 inches long which will give it an area of 100 inches2
To find the perimeter of a triangle, add the three sides. Perimeter = 6in + 8in + 10in = 24in.
A square has 4 equal sides, so if one side is 8 inches long, your equation would be: 8 X 4 = ? (Once again, you do the math).
15 x 4 = 60 inches
The perimeter is the distance around the outside of a shape. Since a square is equilateral, which means that all the sides are equal the perimeter of the square will be 6 x 4 = 24 inches.