The width of the rectangle is 40 cm. Its length is 135 percent. Find the perimeter and area of the rectangle.

It is known from the condition that the width of the rectangle is (40 cm), and its length is 135% of the width.

To find the length of the rectangle, let’s compose and solve the proportion.

40 cm – 100%;

x cm – 135%.

40 / x = 100/135;

x = (40 * 135) / 100 = 5400/100 = 54 cm width of the rectangle.

We are looking for the area of a rectangle using the formula: S = a * b, where a is the length and b is the width.

S = 54 * 40 = 2 160 cm2.

We are looking for the perimeter by the formula:

P = 2 * (a + b), where a – length, b – width.

P = 2 * (54 + 40) = 2 * 94 = 188 cm.

Answer: P = 188 cm, S = 2 160 cm2.