By the condition of the problem, the perimeter of the rectangle is 44 1/2 cm, as well as its width is 10 1/2 cm, we find the length of the rectangle:
a = P / 2 – b, where a is the length of the rectangle, P is the perimeter of the rectangle, b is the width of the rectangle.
a = 44 1/2: 2 – 10 1/2;
a = 44.5: 2 – 10.5;
a = 22.25 – 10.5;
a = 11.75 (cm) – the length of the rectangle.
In order to find the area of a rectangle, you need to find the product of width and length:
S = a * b, where S is the area of the rectangle, a is the length of the rectangle, b is the width of the rectangle.
S = 11.75 * 10.5;)
S = 123.375 (cm2)
Answer: 123.375 cm2
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