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Math 8 LG 7 Unit 2 Practice Test #1



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Find the square of 11.
a.
121
b.
22
c.
44
d.
242
 

 2. 

Find mc002-1.jpg.
a.
12
b.
72
c.
36
d.
48
 

 3. 

Which whole number is mc003-1.jpg closer to?
a.
5
b.
4
c.
3
d.
2
 

 4. 

Estimate mc004-1.jpg to 1 decimal place.
a.
mc004-2.jpg
b.
mc004-3.jpg
c.
mc004-4.jpg
d.
mc004-5.jpg
 

 5. 

The area of square P is 52 cm2.
Square Q has an area equal to one quarter the area of square P.
Find the approximate side length of square Q.
Give your answer to 1 decimal place.
a.
3.6 cm
b.
5.1 cm
c.
13 cm
d.
1.8 cm
 

 6. 

Find the length of the hypotenuse.
mc006-1.jpg
a.
9 m
b.
10 m
c.
11 m
d.
12 m
 

 7. 

Find the length of the leg labelled r.
mc007-1.jpg
a.
39 m
b.
38 m
c.
12 m
d.
24 m
 

 8. 

Find the length of the diagonal, d, in the square. Give your answer to 1 decimal place.
mc008-1.jpg
a.
9 m
b.
162 m
c.
18 m
d.
12.7 m
 

 9. 

Use the Pythagorean Theorem to find the area of this square.
mc009-1.jpg
a.
13 square units
b.
16 square units
c.
9 square units
d.
2 square units
 

 10. 

In a right triangle, the length of the hypotenuse is 18 m and the length of one of the legs is 15 m.
Find the length of the other leg. Round your answer to the nearest tenth.
a.
5.0 m
b.
6.8 m
c.
9.9 m
d.
23.4 m
 

 11. 

This diagram shows 2 flag poles that are 4.5 m tall. The distance from the top of the left pole to the base of the right pole is 7.5 m. What is the distance between the 2 flag poles?
mc011-1.jpg
a.
5.0 m
b.
6.0 m
c.
3.0 m
d.
4.5 m
 

 12. 

Find the length of the line segment.
Give your answer to 1 decimal place.
mc012-1.jpg
a.
12.5 units
b.
157 units
c.
17 units
d.
4.1 units
 

 13. 

Which object is NOT a prism?
mc013-1.jpg
a.
Object A
b.
Object B
c.
Object C
d.
Object D
 

 14. 

How many triangular faces are there in a hexagonal prism?
a.
2
b.
1
c.
0
d.
6
 

 15. 

Draw the object that has this net.
mc015-1.jpg
a.
mc015-2.jpg
b.
mc015-3.jpg
c.
mc015-4.jpg
d.
mc015-5.jpg
 

 16. 

Draw a net for this object.
mc016-1.jpg
a.
mc016-2.jpg
c.
mc016-4.jpg
b.
mc016-3.jpg
d.
mc016-5.jpg
 

 17. 

Find the surface area of this right rectangular prism.
mc017-1.jpg
a.
138 cm2
b.
21 cm2
c.
280 cm2
d.
276 cm2
 

 18. 

Find the surface area of this right rectangular prism.
mc018-1.jpg
a.
156 m2
b.
48 m2
c.
264 m2
d.
132 m2
 

 19. 

A square prism is 12 cm tall. The side length the square base is 7 cm.
What is the surface area of the prism?
a.
434 cm2
b.
336 cm2
c.
588 cm2
d.
104 cm2
 

 20. 

The total area of the 3 rectangular faces of a right triangular prism is 56 cm2.
The total surface area of the prism is 68 cm2. Find the area of each triangular face.
a.
6 cm2
b.
12 cm2
c.
1.2 cm2
d.
49.3 cm2
 

 21. 

The length of one edge of a cube is 5 cm. What is the volume of the cube?
a.
150 cm3
b.
125 cm3
c.
60 cm3
d.
75 cm3
 

 22. 

A right rectangular prism has length 6 cm, width 3 cm, and height 4 cm.
If the length is doubled, what is the new volume of the prism?
a.
288 cm3
b.
144 cm3
c.
432 cm3
d.
576 cm3
 

 23. 

Find the volume of this triangular prism.
mc023-1.jpg
a.
108 cm3 
b.
216 cm3 
c.
178.8 cm3 
d.
89.4 cm3 
 

 24. 

The area of the base of a right triangular prism is 14.5 cm2 and the length of the prism is 6 cm.
Calculate the volume of the prism.
a.
87 cm3
b.
43.5 cm3
c.
174 cm3
d.
20.5 cm3
 

 25. 

A paper cup has the shape of a perfect cylinder that is 6.9 cm tall and 3 cm across.
Find the area of paper needed to make the cup.
Use mc025-1.jpg and give the answer to the nearest square centimetre.
a.
65 cm2
b.
72 cm2
c.
79 cm2
d.
53 cm2
 

 26. 

Find the volume of this cylinder. Leave mc026-1.jpg in your answer. 
mc026-2.jpg
a.
mc026-3.jpg mm3
b.
mc026-4.jpg mm3
c.
mc026-5.jpg mm3
d.
mc026-6.jpg mm3
 

 27. 

Draw the side view of this object.
mc027-1.jpg
a.
mc027-2.jpg
b.
mc027-3.jpg
c.
mc027-4.jpg
d.
mc027-5.jpg
 

 28. 

An object is made using 3 linking cubes. The diagram shows 2 views of the object.
Draw the right side view of the object.
mc028-1.jpgmc028-2.jpg
a.
mc028-3.jpg
b.
mc028-4.jpg
c.
mc028-5.jpg
d.
mc028-6.jpg
 

 29. 

This object is made using linking cubes. Draw the top view of this object.
mc029-1.jpg
a.
mc029-2.jpg
b.
mc029-3.jpg
c.
mc029-4.jpg
d.
mc029-5.jpg
 

 30. 

These are views of an object built using linking cubes. Sketch the object.
mc030-1.jpg
a.

mc030-2.jpg
c.

mc030-4.jpg
b.

mc030-3.jpg
d.

mc030-5.jpg
 

Short Answer
 

 31. 

Which whole numbers between 67 and 141 are perfect squares?
 

 32. 

Find 82.
 

 33. 

Find a square root of 900.
 

 34. 

List the factors of 70 in ascending order.
 

 35. 

What is a factor?
 

 36. 

Find sa036-1.jpg.
 

 37. 

The length of the hypotenuse of a right triangle is sa037-1.jpg m.
The lengths of the legs are whole numbers of metres.
What are the lengths of the legs?
 

 38. 

A boat sails due south from a port at a steady speed of 9 km/h.
The wind blows the boat due west at a speed of 3 km/h.
How far is the boat from the port after 1 h?
Give your answer to 1 decimal place.
 

 39. 

A line segment joins points P(–1, –7) and Q(7, 3). Determine the length of PQ to 1 decimal place.
 

 40. 

Name the polyhedron that can be made from this net.
sa040-1.jpg
 

 41. 

An open box has the shape of a right rectangular prism. The net for the box is shown.
Find the area of the material required to make the box.
sa041-1.jpg
 

 42. 

A right rectangular prism is made using 10 centimetre cubes.
a)      What are the possible dimensions of the prisms?
b)      What are the surface area of the prisms?
 

 43. 

The 2 triangular faces of this prism are isosceles triangles with base length 6 cm and height 12 cm.
Calculate the surface area of the prism.
sa043-1.jpg
 

 44. 

Find the surface area of this right rectangular prism.
sa044-1.jpg
 

 45. 

Find the volume of this square prism.
sa045-1.jpg
 

 46. 

The rectangular prism has dimensions 14 cm, 9 cm, and 7 cm.
It is divided into 2 congruent triangular prisms along the diagonal shown.
Find the volume of each triangular prism.
sa046-1.jpg
 

 47. 

A circle has radius 18 cm. Find the circumference to the nearest centimetre.
 

 48. 

An open storage tank is cylindrical with height 13 m and diameter 22 m.
The outside curved surface area will be given 3 coats of paint.
Calculate, to the nearest square metre, the total area to be painted.
 

 49. 

These are the top, front, and right side views of an object built using linking cubes.
Sketch a 3-D picture of the object.
sa049-1.jpg
 

 50. 

An object is built using linking cubes.
The diagram shows the front and right side views of the object.
Sketch a 3-D picture of the object.
sa050-1.jpg
 

Problem
 

 51. 

A square park has area 120 m2.
a)      What are the dimensions of the park? Give your answer to the nearest metre.
b)      If fencing costs $18.50/m, how much would it cost to install a fence around the park?
Show your work.
 

 52. 

A rectangular carpet measures 7.2 m by 5.5 m.
Calculate the length of the diagonal. Give your answer to the nearest tenth.
 

 53. 

Calculate the radius of the cylinder that can be made from each net. Show your work.
Use p = 3.14 and round your answer to 1 decimal place if necessary.
a)            b)
pr053-1.jpg      pr053-2.jpg
 

 54. 

The diagram shows an open box in the shape of a right rectangular prism.
A square hole of side 5 cm is cut out of the front face.
What is the total surface area of the box? Show your work.
pr054-1.jpg
 

 55. 

Find the surface area of this trapezoidal prism. Show your work.
pr055-1.jpg
 

 56. 

A right rectangular prism is made from 20 centimetre cubes.
a)      What is the volume of the prism?
b)      What are the possible dimensions of the prism?
 

 57. 

This diagram shows the front and top views of a triangular prism.
pr057-1.jpg
a)      What is the volume of the prism?
b)      Two of the prisms are glued together to form a square prism.
      What is the volume of the square prism?
Show your work.
 

 58. 

This object is built using linking cubes. Sketch 2 possible top views of this object.
pr058-1.jpg
 

 59. 

This object is made using 8 linking cubes. Sketch the top, front, and left side views of the object.
pr059-1.jpg
 

 60. 

The diagrams show the front, side, and top views of a symmetrical solid.
Sketch a 3-D picture of the solid.
pr060-1.jpg
 



 
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