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29 June, 01:21

The base of a parallelogram is 4 inches longer than twice the height. The area of the parallelogram is 16 square inches. What is the height?

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Answers (2)
  1. 29 June, 01:41
    0
    2 inches

    Step-by-step explanation:

    The area (A) of a parallelogram is calculated as

    A = bh (b is the base and h the height)

    Here A = 16 and b = 2h + 4 (4 more than twice the height), thus

    16 = h (2h + 4) = 2h² + 4h (subtract 16 from both sides)

    2h² + 4h - 16 = 0 (divide through by 2)

    h² + 2h - 8 = 0 ← in standard form

    (h + 4) (h - 2) = 0 ← in factored form

    Equate each factor to zero and solve for h

    h + 4 = 0 ⇒ h = - 4

    h - 2 = 0 ⇒ h = 2

    But h > 0 thus h = 2
  2. 29 June, 01:43
    0
    2 (i think)

    Step-by-step explanation:

    4 times 2 = 8 and to get the area you need to multiply base times height and the only way to get 16 once youve figured out 8 is to multiply it by 2
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