Dr. J's Maths.com
Where the techniques of Maths
are explained in simple terms.

Measurement - Surface area and volume.
Test Yourself 1.


 

Prisms 1.
   
 

3. A cube has a volume of 512 cm3.

What is the surface area of this cube?

Answer.Surface area = 384 cm2
 

4. A 3D shape is developed from two parts - one is a cube and the other is a triangular prism. The image is shown below.

What is the surface area of this solid?

 

 

5. A skip bin in the shape of a trapezoidal prism is shown in the diagram below. The dimensions are indicated.

The skip bin has a volume of 3.84 m3.

Find the length of the bottom side marked x.

Answer.1.4 m.
Cylinders 6.
   
 

8. A tennis ball has an average diameter of 6.7 cm. They are packaged into pressurised cans of 6.9 cm diameter which contain 4 balls. The cans are 28 cm long.

(i) What is the volume of the can (to 1 decimal place)?

(ii) What is the volume of one tennis ball
(to 1 decimal place)?

(iii) What is the percentage of empty space surrounding the balls in one can containing 4 balls
(to nearest %)?

Answer.(i) 987.2 cm 3.
(ii) Vol of ball = 157.5 cm3.
(iii) 36%.
   
   
Spheres 11.
   
   
   
   
Pyramids 16.
   
 

18. A pyramid has a square base with side lengths of 18 cm. The height of the pyramid is 25 cm.

Find the surface area and the volume of this pyramid.

 

 

19. A pyramid has a vertical height of 1.4 m and a square base with sides of 90 cm.

Calculate the capacity of the pyramid to the nearest 10 litres.

   
Composite solids 21.