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barxatty [35]
3 years ago
8

I really need help soon please :)

Mathematics
1 answer:
Sati [7]3 years ago
7 0

Volume of the pyramid = 396 \text{km}^3

Solution:

Base of the triangle (b) = 9 km

Height of the triangle (h) = 12 km

Base area of the triangle (B) = \frac{1}{2} bh

                                               $=\frac{1}{2}\times9\times12

Base area of the triangle (B) = 54 km²

Height of the pyramid (H) = 22 km

Volume of the pyramid = \frac{1}{3}BH

                                      $=\frac{1}{3}\times54\times22

                                      = 396 \text{km}^3

Volume of the pyramid = 396 \text{km}^3

Hence the volume of the pyramid is 396 \text{km}^3.

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