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30 December, 15:16

Which of the following could be the perimeter of a rectangle with an area of 18 square centimeters?

A) 24 centimeters

B) 28 centimeters

C) 18 centimeters

D) 16 centimeters

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Answers (1)
  1. 30 December, 15:28
    0
    The correct answer is c) 18 centimeters

    Step-by-step explanation:

    Given:

    A = 18 cm²

    We know that the formula for calculating area of a rectangle is

    A = a · b where a is length and b is width

    Possible choices is 6 · 3 and 9 · 2

    Formula for calculating perimeter is

    P = 2 (a + b)

    P₁ = 2 (6 + 3) = 2 · 9 = 18 cm²

    P₂ = 2 (9 + 2) = 2 · 11 = 22 cm²

    The obvious choice is P₁ = 18 cm²

    God with you!
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