Find the area and perimeter of a rectangle that is 16 centimeters wide and 70 times longer.
August 28, 2021 | education|
Width (b) – 16 cm;
Length (a) -? cm, 70 times the width;
Rpr. -? cm;
Sp. -? cm ^ 2.
First, let’s find the length of the rectangle:
16 * 70 = 1120 (cm).
It is known that the perimeter and area of a rectangle are found by the formulas:
Rpr. = (a + b) * 2; Sp. = a * b.
We substitute the known values of the length and width into the formulas:
Rpr. = (a + b) * 2 = (1120 + 16) * 2 = 2272 (cm);
Sp. = a * b = 1120 * 16 = 17920 (cm ^ 2).
Answer: Rpr. = 2272 cm; Sp. = 17920 cm ^ 2.
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