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Define the relationship between the base and height.

Chemistry

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Answer

B) 12 cm\text{B) } 12 \text{ cm}

Step-by-step solution

3 steps
  1. Define the relationship between the base and height.

    Let hh be the height of the parallelogram and bb be the base.
    According to the problem, the base is four times the height:

    b=4hb = 4h
  2. Use the area formula to set up an equation.

    The area (AA) of a parallelogram is given by the formula A=b×hA = b \times h.
    We are given that the area is 576 cm2576 \text{ cm}^2.
    Substitute b=4hb = 4h into the area formula:

    576 cm2=(4h)×h576 \text{ cm}^2 = (4h) \times h 576 cm2=4h2576 \text{ cm}^2 = 4h^2
  3. Solve for the height (hh).

    Divide both sides by 4:

    h2=576 cm24h^2 = \frac{576 \text{ cm}^2}{4} h2=144 cm2h^2 = 144 \text{ cm}^2

    Take the square root of both sides:

    h=144 cm2h = \sqrt{144 \text{ cm}^2} h=12 cmh = 12 \text{ cm}

    The height of the parallelogram is 12 cm12 \text{ cm}.

    The final answer is B) 12 cm\text{B) } 12 \text{ cm}.

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