Evaluate:

square root of:

a)49=7

b)64=8

c)652=25.2

To get all those answers, I simply used my calculator.

Question 16

Evaluate:

Square root of:

a)9=3

b)25=5

c)1600=40

Again to get those answers, I used my calculator.

Question 23

A helicopter landing pad has a square shape. The area is 400m squared. Use Prime factorization to fine the side length of the pad.

400

=200 x 2

=100 x 2 x 2

=50 x 2 x 2 x 2

=25 x 2 x 2 x 2 x 2

=5 x 5 x 2 x 2 x 2 x 2

400 = (5x2x2) x (5x2x2)

400 = 20 x 20

400 = 20 squared

## 1 comment:

good job but you should have showed people how you used the calculator . what you press and what sign does is look like ??

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