7) Rectangular pyramid:
Length = 8m ; width = 4.6m ; Volume = 88m³
Volume of a rectangular pyramid = (Length Width Height)/3
88m³ = (8m 4.6m height)/3
88m³ 3 = 36.8m² height
264m³ = 36.8m² height
264m³ / 36.8m² = height
7.2 m = height
8) Cone:
r = 5 in ; volume = 487 in³
Volume of a cone = π r² h/3
487 in³ = 3.14 (5in)² h/3
487 in³ 3 = 3.14 25in² h
1,461 in³ = 78.5 in² * h
1,461 in³ / 78.5 in² = height
18.6 in = height
