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Worksheets

Exploring the Number 11

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

What is the square of 11?

a)

144

b)

121

c)

100

d)

81

2.

How many prime factors does 11 have?

a)

1

b)

4

c)

2

d)

3

3.

What is the atomic number of sodium, which is 11?

a)

12

b)

11

c)

13

d)

10

4.

In Roman numerals, how is 11 represented?

a)

XI

b)

IX

c)

XIII

d)

XII

5.

What is the sum of the first 11 prime numbers?

a)

129

b)

135

c)

140

d)

122

6.

What is the 11th element in the periodic table?

a)

Helium

b)

Oxygen

c)

Sodium

d)

Potassium

7.

What is the smallest prime number greater than 11?

a)

17

b)

13

c)

15

d)

14

8.

How many sides does a hendecagon have?

a)

8

b)

11

c)

12

d)

15

9.

What is the 11th Fibonacci number?

a)

21

b)

55

c)

34

d)

89

10.

What is the significance of the number 11 in numerology?

a)

The significance of the number 11 in numerology is that it is a master number representing intuition, spiritual insight, and enlightenment.

b)

The significance of the number 11 in numerology is related to material wealth and success.

c)

In numerology, 11 is considered a neutral number with no special significance.

d)

The number 11 in numerology represents bad luck and misfortune.

11.

What is the binary representation of 11?

a)

1001

b)

1101

c)

1110

d)

1011

12.

What is the 11th letter in the English alphabet?

a)

M

b)

P

c)

K

d)

S

13.

What is the 11th month of the year?

a)

April

b)

December

c)

March

d)

November

14.

What is the angle measurement in degrees of a regular hendecagon?

a)

135.78 degrees

b)

160.32 degrees

c)

147.27 degrees

d)

125.45 degrees

15.

What is the sum of the interior angles of an 11-sided polygon?

a)

1980 degrees

b)

1620 degrees

c)

1260 degrees

d)

1440 degrees