Question

After going through this module, you are expected to:

1. Describe principal roots and tells whether they are rational or irrational
2. Determine between what two integers the square root of a number is.
3. Plot irrational numbers on the number line.
1
Square Root
WEEK
3
6
Count the total number of squares of the
chess board. Prove that it has a total of 204
squares.
D
Recall that a rati

Answer 1

squares numbers:

1x1 squares = 8*8

2x2 squares = 7*7

3x3 squares = 6*6

4x4 squares = 5*5

5x5 squares = 4*4

6x6 squares = 3*3

7x7 squares = 2*2

8x8 square = 1

number total:

8² + 7² + 6² + 5² + 4² + 3² + 2² + 1 =

64 + 49 + 36 + 25 + 16 + 9 + 4 + 1 =

204

Answer 2

See below

Explanation:

Number of squares:

• 1x1 squares = 8*8
• 2x2 squares = 7*7
• 3x3 squares = 6*6
• 4x4 squares = 5*5
• 5x5 squares = 4*4
• 6x6 squares = 3*3
• 7x7 squares = 2*2
• 8x8 square = 1

Total number:

• 8² + 7² + 6² + 5² + 4² + 3² + 2² + 1 =
• 64 + 49 + 36 + 25 + 16 + 9 + 4 + 1 =
• 204