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Math 8 LG 4 Practice Quiz #2



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

 1. 

Which of these numbers is not a perfect square: 121, 2, 100, or 4?
a.
121
b.
2
c.
100
d.
4
 

 2. 

Find a square root of 81.
a.
36
b.
41
c.
20
d.
9
 

 3. 

Find mc003-1.jpg.
a.
12
b.
72
c.
36
d.
48
 

 4. 

Find the number whose square root is 36.
a.
6
b.
24
c.
1296
d.
144
 

 5. 

Simplify 72.
a.
28
b.
49
c.
14
d.
98
 

 6. 

Copy each line segment on grid paper.
Without measuring, determine which line segment is longest.
mc006-1.jpg
a.
Line B
b.
Line A
c.
Line C
d.
Line D
 

 7. 

Which whole number is mc007-1.jpg closer to?
a.
11
b.
12
c.
14
d.
13
 

 8. 

What is the least whole number greater than mc008-1.jpg?
a.
7
b.
29
c.
15
d.
8
 

 9. 

Find the length of the diagonal, d, in the rectangle. Give your answer to the nearest centimetre.
mc009-1.jpg
a.
320 cm
b.
18 cm
c.
24 cm
d.
14 cm
 

 10. 

The areas, in square centimetres, of the smaller squares on the sides of a right triangle are given. Determine the area of the largest square.
mc010-1.jpg
a.
61 cm2  
b.
22 cm2
c.
11 cm2
d.
330 cm2
 

 11. 

The areas, in square centimetres, of the largest square and one of the smaller squares on the sides of a right triangle are given. Determine the area of the third square.
mc011-1.jpg
a.
74 cm2  
b.
2 cm2
c.
24 cm2
d.
5 cm2
 

 12. 

Find the length of the hypotenuse.
Give your answer to 1 decimal place.
mc012-1.jpg
a.
4.7 cm
b.
7.2 cm
c.
4.5 cm
d.
6.3 cm
 

 13. 

Jolene drew a diagonal on her rectangular book cover.
Find the length of the diagonal.
Give your answer to 1 decimal place.
mc013-1.jpg
a.
13.3 cm
b.
16.0 cm
c.
6.2 cm
d.
4.0 cm
 

 14. 

Ryan owns a plot of land in the shape of a right triangle.
The lengths of the 2 legs of the plot of land are 15 m and 19 m.
Find the length of the hypotenuse. Round your answer to the nearest tenth.
a.
19.4 m
b.
24.2 m
c.
11.7 m
d.
28.7 m
 

 15. 

Gerry drew a diagram to compute the distance he will travel if he drives from his home to the arena and then from the arena to the museum.
What is the distance he will travel if he drives directly to the museum from his home?
mc015-1.jpg
a.
26 km
b.
91 km
c.
65 km
d.
52 km
 

Short Answer
 

 16. 

Which of these numbers are square numbers: 48, 64, 57, 81?
 

 17. 

A square book cover has area 25 square units.
Find the perimeter of the book cover.
 

 18. 

Which whole numbers between 67 and 141 are perfect squares?
 

 19. 

Find the square of 16.
 

 20. 

Which perfect squares have square roots between 6 and 10?
 

 21. 

The area of a square is 65 cm2. Find its side length.
 

 22. 

Copy the line segment on grid paper.
Draw a square on the line segment.
Find the area of the square and the length of the line segment.
sa022-1.jpg
 

 23. 

Write N.
Estimate the value of N to 1 decimal place.
sa023-1.jpg
 

 24. 

Is 5 greater than, less than, or equal to sa024-1.jpg?
 

 25. 

Find the approximate side length of a square with area 242 cm2.
 

 26. 

Label the hypotenuse on this right triangle.
sa026-1.jpg
 

 27. 

The length of the hypotenuse of a right triangle is sa027-1.jpg m.
The lengths of the legs are whole numbers of metres.
What are the lengths of the legs?
 

 28. 

Use what you know about the Pythagorean Theorem.
Find the length of the line segment.
sa028-1.jpg
 

 29. 

The area, in square centimetres, of the square on each side of a triangle is given.
Is the triangle a right triangle? How do you know?
sa029-1.jpg
 

 30. 

A rectangular sports field measures 100 m by 75 m.
How far will Wendy run if she runs diagonally across the field?
Give your answer to the nearest metre.
 

Problem
 

 31. 

Use a diagram to show that 225 and 289 are square numbers.
 

 32. 

Use 1-cm grid paper.
Draw as many different rectangles as you can with area 36 cm2.
Find the base and height of each rectangle.
Record the results in a table.
Base (cm)
Height (cm)
Perimeter (cm)
   
   
   
   
   
   
   
   
   

Which rectangle has the least perimeter?
What can you say about this rectangle?
 

 33. 

Find the square of each number.
a)      8
b)      9
c)      7
 

 34. 

Use a table like this.
Number = 144
Factor Pairs
1
144
2
 
  

List the factor pairs of these numbers: 4, 9, 25, and 49.
What can you say about these numbers?
 

 35. 

Find the number whose square root is 17. Explain your strategy.
 

 36. 

a)      On grid paper, draw a square with area 32 square units.
b)      Explain how you know the square has this area.
c)      Write the side length s of the square.
 

 37. 

Plot the points A(5, 6) and B(11, 10) on a coordinate grid.
Join the points to form a line segment.
Explain how you would find the length of the line segment.
 

 38. 

a)      Estimate each square root to 2 decimal places.
      pr038-1.jpg, pr038-2.jpg, pr038-3.jpg, pr038-4.jpg, pr038-5.jpg
b)      Look at your results in part a. What patterns do you see?
 

 39. 

The length of the hypotenuse of a right triangle is pr039-1.jpg cm.
Give 3 possible lengths of the legs of the triangle.
 

 40. 

The 2 diagonals of rhombus PQRS measure 10 cm and 14 cm. The diagonals intersect at T.
Find the side length of the rhombus. Justify your answer.
pr040-1.jpg
 



 
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