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Grade 8_ Lesson 1

Total questions: 10

Worksheet time: 7mins

Name
Class
Date
1.

The area of a square is 36 cm2. What is the length of one side?

a)

6 cm

b)

9 cm

c)

24 cm

d)

12 cm

2.

The area of a square is 100 cm2. What is the perimeter?

a)

25 cm

b)

10 cm

c)

40 cm

d)

50 cm

3.

To find the square root of a number, you must divide it by 2.

a)

True

b)

False

4.

Find x such that x2 = 144

a)

12 or 1

b)

- 12

c)

12 or -12

d)

122

5.

Which number has a square root that is 6?

a)

48

b)

81

c)

60

d)

36

6.

Compare:   36\sqrt{36}  ________ 5

a)

is greater than

b)

is less than

c)

is equal to

7.

Compare:  \sqrt{500}  _______ 22

a)

is less than

b)

is greater than

c)

is equal to

8.

Find a natural number x such that 2x2 = 242

a)

11

b)

-11

c)

11 or -11

d)

12 or -12

9.

Which would be the next number in the pattern?

36, 49, 64, 81, ____

a)

82

b)

18

c)

64

d)

100

10.

Calculate:  -\sqrt{169}  

a)

13

b)

-13

c)

13 or -13

d)

can't calculate