The perimeter of the rectangle is 72 cm, width is 17 cm, find the length and area of the surface.
| February 8, 2021 | education
The perimeter P of the rectangle is 72 centimeters.
The width b of the rectangle is 17 centimeters.
We calculate the length of this figure by the formula a = (P – b – b): 2:
a = (P – b – b): 2 = (72 – 17 – 17): 2 = 38: 2 = 19 centimeters.
Find the area of the rectangle using the formula S = a * b:
S = a * b = 19 * 17 = 323 cm2.
Answer: The rectangle covers an area of 323 cm2.
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