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WARRIOR [948]
3 years ago
12

Help me please for brainlist

Mathematics
2 answers:
bagirrra123 [75]3 years ago
6 0

Answer:

B, 82 meters cubed

Step-by-step explanation:

The formula for volume of a triangular pyramid is <u>1/3Ah, where A = the area of the triangular base, and h = the height of the pyramid</u>.

The area of the base here is <u>1/2 base x height, so</u>:

1/2 x 8.2 x 4 = 1/2 (32.8) = 16.4 meters squared.

Plug this into the formula for the volume of the pyramid:

1/3 x 16.4 meters squares x 15 meters = 82 meters cubed

allochka39001 [22]3 years ago
3 0

Answer:

b. 82m³

Step-by-step explanation:

V = \frac{1}{3}(\frac{1}{2} bh_1)h_2\\b = 8.2m\\h_1 =  4m\\h_2 = 15m\\\\V = \frac{1}{3}(\frac{1}{2}(8.2)(4))(15)\\V = 82m^{3}\\

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