can someone please help with these volume equations? 10th grade geometry. will reward brainly


Answer:
First picture - 20.42 m
Second picture - 12.9 m
Step-by-step explanation:
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Formula for pyramid:
[tex]V=b^2\frac{h}3[/tex]
Where,
b = base - 3.5 m
h = height - 5 m
Thus,
[tex]V=3.5^2\frac{5}{3}[/tex]
[tex]20.41667m^3[/tex] ≈ [tex]20.42m^3[/tex]
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Formula for pyramid:
[tex]V=b^2\frac{h}3[/tex]
Where,
b = base - 3 m
h = height - 4.3 m
Thus,
[tex]V = 3^2\frac{4.3}{3}[/tex]
[tex]12.9m^3[/tex]
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Kavinsky