Sunday, January 22, 2012

Joy's Square Root Scribepost

Textbook page 98-100

4.) Estimate the square root of each number, to one decimal. Check with a calculator.
a.) 72

b.) 103

c.)55

17.) Carmel wants to mount an 18 cm x 18 cm square picture on a square board that is four times the area of the picture.
a.) What is the area of the picture?
b.) What is the area of the board?
c.) What are the dimensions of the board?
10.)
Kai uses an entire can of paint on a square backdrop for the school play. The label on the can states that can states that one can covers 27cm2 of the wall surface. Estimate the backdrop's side lenght, to one decimal place.

Video:

1. Answer in a short paragraph and with diagrams

Relationship between the sides of a right triangle. A right triangle is any triangle that has one right internal angle. Pythagoras stated, if the length of the legs (smallest side) are squared and their sum is found, the sum will equal to the square of the hypotenuse ( longest side).
2. Solve for the missing side length.

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