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riadik2000 [5.3K]
3 years ago
13

ABCD is a parallelogram.

Mathematics
1 answer:
umka21 [38]3 years ago
4 0

9514 1404 393

Answer:

  6 cm

Step-by-step explanation:

The area of the parallelogram is the same, either way you figure it.

  A = bh

  A = CD(length ⊥ to CD)

  A = (9 cm)(8 cm) = 72 cm²

__

  A = AD(length ⊥ AD)

  72 cm² = (12 cm)(length ⊥ AD)

  (length ⊥ AD) = (72 cm²)/(12 cm) = 6 cm

The perpendicular distance of AD from BC is 6 cm.

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Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step explanation:

If a line is perpendicular to the x-axis, then it is a vertical line because the x-axis is horizontal.

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The equation of a vertical line through (x_1,y_1) is x=x_1

Since the vertical line passes through (4,-2), its equation is

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