## Sunday, January 22, 2012

### Kassey's Textbook Questions

4.    Estimate the square root for each number, to one decimal place. check with a calculator.

Estimate: A) 8.4        B) 10.2      C) 7.3

Calculations: A)  8.4    B) 10.1   C) 7.2

16. A fitness room center will install a square hot tub in a 6m x 6m room. They want the tub to fill no more than 75% of the rooms area.

A) what is the maximum area of the hot tub?

B)  what dimensions to a tenth of a meter will the fitness center order from the manufacturer? Explain.

9)  what are all the possible whole numbers that have a square root between 4 and 5?

A:  17, 18, 19, 20, 21, 22, 23, 24

Here is a video for square and square roots:

Pythagoras:

1) Explain the Pythagoras Relationship:
The relationship between the lengths of the sides of a right triangle.  The sum of the area of the squares attached to the legs of a right triangle equals the area of the square attached to the hypotenuse.

2) What is the missing length?
It is 13cm because the hypotenuse ( or C ) has to be a larger
number than the legs ( or A, B ).

3) Is this a right triangle ?
This is not a right triangle because a square + b square does not = c square also the legs added together does not equal the hypotenuse.