a.) 72

b.) 103

c.)55

**10. Kai uses an entire can of paint on a square backdrop for the school play. The label on the can states that one can cover 27 m² of wall surface. Estimate the backdrop's side length, to one decimal place.**

**A-4x4=16 and 5x5=25 and 6x6=36 so now we know that its between 5 and 6.**

**Now 5.1x5.1=26.01 and 5.2x5.2=27.04 so the answer is 5.2 but then it says move one decimal space so the real answer is 5.1.**

11. The square has an area of 20cm2

A) Use perfect squares to estimate the side length to one decimal place.

so 1x1=1

2x2=4

3x3=9

4x4=16

5x5=25

So the side length must be between 4 and 5 and 4.5x4.5=20.25 but it says move one decimal place so the answer is actually 4.4

So 4.5=20.25 (4.4) if you round the answer to make a whole number the answer will be 20 and so 4.5(4.4) is the side length of 20cm2

2. Solve for the missing side length.

3. Is this a right triangle? Prove it!!!

## No comments:

## Post a Comment