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Can somebody help with this?

Can somebody help with this?-example-1
User HieroB
by
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1 Answer

4 votes

Answer:

The height of the pyramid is 11.8 cm to the nearest tenth of a cm

Explanation:

The formula of the volume of a pyramid is V =
(1)/(3) × A × h, where

  • A is the area of its base
  • h is its height

∵ A right rectangular pyramid has base dimensions of 23.2 cm, 17.0 cm

∵ The area of the rectangle = Length × width

→ Assume that the length is 23.2 and the width is 17.0

∴ A = 23.2 × 17.0

A = 394.4 cm²

∵ Its volume is 1552.4 cm³

V = 1552.4 cm³

→ Substitute A and V in the rule above

1552.4 =
(1)/(3) × 394.4 × h

∴ 1552.4 =
(1972)/(15) h

→ Divide both sides by
(1972)/(15)

11.80831643 = h

→ Round it to the nearest tenth of a cm

h = 11.8 cm

The height of the pyramid is 11.8 cm to the nearest tenth of a cm

User Miscreant
by
8.3k points

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