# Find the perimeter of the rectangle if it is 12cm long and 13cm wide?

January 13, 2021 | education

| Generally speaking, if the sides of a rectangle are known, then the large side is called the length, the small side – the width, although this is not strictly specified anywhere.

The perimeter of the rectangle (P) according to the known length (a) and width (b) is calculated by the formula: P = 2 * (a + b).

For our example, a = 12 cm and b = 13 cm.Therefore, P = 2 * (12 cm + 13 cm) = 2 * 25 cm = 50 cm.

Answer: The perimeter of the rectangle is 50 cm.

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