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VOLUMES & AREAS

 

Calculate the volume and surface area of the following figures. They are not drawn to scale.

1.  2.   3.

 

4   5.      6.

 

7.     8.     9.

 

10.11.12.

 

Answers:

1. V = 33.5 cm3, A = 50.3 cm2;            2. V = 64 cm3, A = 96 cm2;

3. V = 226.2 cm3, A = 207.3 cm2         4. V = 268.1 cm3, A = 201.1 cm2

5. V = 216 cm3, A = 216 cm2               6. V = 502.7 cm3, A = 351.9 cm2

7. V = 24 m3, A = 68 m2                      8. V = 8640 m3, A = 2641.3 m2

9. V = 589.0 m3, A = 464.2 m2            10. V = 18000 m3, A = 4342.2 m2

11. V = 1250 m3, A = 848.6 m2           12. V = 1767.1 m3, A = 947.9 m2