WORK BOOK

IRRATIONAL NUMBERS

Activity 1

Draw the following

1. A line of length centimetres?

2. A square of area 7 square centimeters?

3. A line of length centimeters?

Activity 2

Compute the following

1. Find the perimeter of a square of area 10 square meters?

2. The hypotenuse of right angled triangle is 3.5 meters long and another of its sides is 2.5 meters long . Calculate its perimeter correct to centimeters?

3. Compute the perimeter of the quadrilateral with measurment as given below , correct to centimeters

1 m

1 m

Activity 3

Find the product of the following and check whether the answer is rational or irrational.

Activity 4

Find the larger one from each pair below , doing the computation in head

1. 2

2. 3

3. 0.5

Activity 5

With out using calculating devices , compute the following correct to two decimal places

Activity 6

Compute the following

1. Compute the length of the diagonal of a square of side 10 meters , correct to centimeters?

2. What is the total length of the line shown below

. . .√3cm √32cm

Activity 7

Compute the following correct to three decimals

1. Using find

2. Using .

3. Using +

ANSWERS

Activity 21. 12.648m2. 846cm3. 423cm

Activity 3

1. 2, Rational2. 6, Rational

3. 0.64. 5, Rational

Activity 41. 32. 23. 0.2

Activity 54. 11.285. 19.616. 1.737. 17.28

Activity 68. 1400cm9. 7.05cm

Activity 710. 0.86611. 0.31612. 5.20213. 2.89

SUBMITTED BYMUHSINA T K ROLL NO 27 B Ed MATHEMATICS