Back to Exercise: Composite 3D figures

Composite 3D Figures

Grade 10·24 problems·~44 min·ACT Math·topic·act-geo-3d-composite
Work through problems with immediate feedback
A

Recall / Warm-Up

1

What is the volume of a cylinder with radius 5 cm and height 8 cm? Leave your answer in terms of π\pi.

2

What is the lateral surface area of a cylinder with radius 3 cm and height 10 cm?

3

What is the volume of a sphere with radius 6 cm? Express your answer in terms of π\pi.

B

Fluency Practice

A cone of height 4 m and radius 5 m sitting on top of a cylinder of height 12 m and radius 5 m, with labeled dimensions.
1

A solid is formed by placing a cone (radius 5 m, height 4 m) on top of a cylinder (radius 5 m, height 12 m). What is the total volume? Express your answer in terms of π\pi.

A hemisphere of radius 4 cm resting on top of a cylinder of radius 4 cm and height 10 cm, with labeled dimensions.
2

A hemisphere of radius 4 cm is placed on top of a cylinder of radius 4 cm and height 10 cm. What is the total volume?

A rectangular prism 12 cm by 8 cm by 8 cm with a cylindrical hole of radius 2 cm drilled through its full length.
3

A rectangular prism is 12 cm long, 8 cm wide, and 8 cm tall. A cylindrical hole with radius 2 cm is drilled through the entire 12 cm length. What is the remaining volume in cubic centimeters? Round to the nearest whole number.

A hemisphere of radius 4 cm on top of a cylinder of radius 4 cm and height 10 cm, with exterior surfaces highlighted and the hidden contact areas at the joint shown in gray.
4

A hemisphere of radius 4 cm sits on top of a cylinder of radius 4 cm and height 10 cm. What is the total exterior surface area?

A cone of radius 3 cm and slant height 5 cm on top of a cylinder of radius 3 cm and height 7 cm, with dimensions labeled.
5

A cone with radius 3 cm and slant height 5 cm sits on top of a cylinder with radius 3 cm and height 7 cm. What is the total exterior surface area? Express your answer in terms of π\pi.

6

A solid hemisphere has radius 5 cm. Its flat circular face is part of the solid, so it is exposed. What is its total surface area, including the flat face? Express your answer in terms of π\pi.

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