V= (8 x 7) (13)

V= (8 x 13) ( 7)

V= (1/2 x 8 x 13) (7)

V= (1/2 x 8 x 7) (13)

Cylinder A

Cylinder B

150.72 cm³

75.36 cm³

452.16 cm³

151 cm³

SA = πrl + πr²

SA = 2πrh + 2πr²

SA = 4πr²

SA = πr²

$$V=Bh$$

$$V=\pi r^2h$$

$$V=\frac{1}{3}\pi r^2h$$

$$V=\frac{4}{3}\pi r^3$$

Volume of a cone

Volume of a sphere

Volume of a cylinder

Volume of a hemisphere

Bottom of the object

Box

Between

Area of the base

42

21

84

Impossible to determine with the information given.

80

90

720

40

12 units²

10 units²

13 units²

6 units

7cm

8cm

4cm