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25 votes
Shelly is using a vase shaped like a triangular prism to display a dozen roses. The volume

of the vase is 154 cubic inches with dimensions shown.
h
7 in.
4 in.
What is the height, h, of the vase?

1 Answer

7 votes

Answer:

  • 11 inches

Explanation:

Assume the base is right triangle.

The volume:

  • V = bh = 1/2abh

Substitute values and solve for h:

  • 154 = 1/2(7)(4)h
  • 154 = 14h
  • h = 154/14
  • h = 11 inches
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