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Hello!

Formula for the volume of a triangular pyramid:

V = 1/3(bh)

The base is a triangle, so b = 1/2(b · h)

Solve for the base:

b = 1/2(8 · 5)

b = 1/2(40)

b = 20 m²

Solve for the volume:

V = 1/3(20 · 9)

V = 1/3(180)

V = 60 m³.

Hope this helped you!

60 cubic meters

Step-by-step explanation:

I used the formula V = 1/3 AH to figure it out

-1, -2, -3, -4, -6

step-by-step explanation:

so, converting firstly the mixed fractions to improper fractions and then "adding".