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MathematicsMathematics
26 December, 22:35

Marta is making a flag with the given dimensions. The perimeter of the flag is 100 inches. How much material, in square inches, is needed to make the flag?

? square inches

If the material costs $0.15 per square inch, how much will Marta spend on materials to make the flag?

$?

+4
Answers (1)
  1. 27 December, 01:15
    +1
    She would need 360 square inches of fabric, we know this by using the heron's formula P = 100, S = 50

    A = (50 (50-41) (50-41) (50-18)) ^.5

    A = (50 (9^2) (32)) ^.5

    A = 9 (50 (32)) ^.5

    A = 9 (1600) ^.5

    A = 9*40

    A = 360

    360*0.15 per piece equals $54

    Answers:

    360, 54
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Home » Mathematics » Marta is making a flag with the given dimensions. The perimeter of the flag is 100 inches. How much material, in square inches, is needed to make the flag? ? square inches If the material costs $0.
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