# Find the perimeter of the rectangle if a = 230cm, b = 12cm, the second side of the rectangle

January 13, 2021 | education

| **Find the perimeter of the rectangle if a = 230cm, b = 12cm, the second side of the rectangle if the perimeter is 320m, and one of the sides is 122cm.**

We find the perimeter of the rectangle by the formula: p = (a + b) * 2, where p is the perimeter, a is the length of the rectangle, b is the width of the rectangle.

1) Find what the perimeter of the rectangle is.

(230 + 12) * 2 = 242 * 2 = 484 centimeters.

2) Let’s calculate what is the second side of the rectangle.

(320 – 122 * 2) / 2 = (320 – 244) / 2 = 76/2 = 38 centimeters.

Answer: The perimeter of the rectangle is four hundred and eighty-four centimeters. The second side of the rectangle is thirty-eight centimeters long.

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