Take out a piece of paper and write these sentences in ‘conditional’ form…. That is, using ‘if’ and ‘then’

Example: Mr. Harms has back hair.If it is Mr. Harms, then he has back hair.

1. On a hot day the sun is out.♥ If it is a hot day, then the sun is out.

2. Boys have cooties.♥ If it is a boy, then it has cooties.

3. Three missing assignments wins me a trip to ASE♥ If I have 3 missing assignments, then I win a trip to ASE.

4. Torrington is in Wyoming.♥ If it is Torrington, then it is in Wyoming.

5. Mr. Epler is the principal of THS♥ If it’s Mr. Epler, then it is the principal of THS.

Warm up

p q

Secret code for conditional statements

If thenp is the hypothesis, q is the conclusion.

The words ‘if’ and ‘then’ are NOT included in the hypothesis or conclusion.

conditional statement: If she is smart and beautiful, then she is Mrs. McAnelly.

hypothesis: she is smart and beautiful

conclusion: she is Mrs. McAnelly

What’s that I smell?

Let’s find the angles together.

Do this new quiz. It’s on the

table

♥Mark all the given information

♥Moving around the puzzle, and using your brain, find all the measurements you know how to find:

♥Linear pairs

♥Vertical angles

♥Triangle sum theorem

♥Linear ‘triple’

2.3.1 – Squares and Square Roots

2.3.2 – Triangle Inequality

Squares2 and square rootsJust like adding and subtracting are ‘opposites’Just like dividing and multiplying are ‘opposites’

Squares and square roots are opposites…

But you KNEW that!! That’s algebra!!

√

If a number is a perfect square, then the square root is an integer.

√49 = + 7

√25 = + 5

√81 = + 9

If a number is not a perfect square, then the square root is irrational…it is not a whole number and it can not be written as a fraction.

√17 ≈ + 4.123

√97 ≈ + 9.8489

exact answersapproximate answers

Let’s try approximating…

Approximate:

√32 =

√60 =

√26 =

5.7

7.7

5.1

6

10

10

If a square…

has side lengths of 10, what is the area?

has an area of 36, what is the measure of each side?100 u2

6

6 units

What if the area of the square is 66 ft2? What would the length of each side be?

8.1? 8.2?

check it with your calculator

What if the area of the square is 50 ft2? What would the length of each side be?

check your guess with the calculator

A secret about side lengths of triangles

The largest side of a triangle has to be GREATER THAN the sum of the other two sides.

Can a triangle have the following side lengths?

3 cm, 5 cm, and 10 cm

4 cm, 9 cm, and 12 cm

2 cm, 4 cm, and 5 cm

3 cm, 5 cm, and 8 cm

yes

no

no

no

Had enough?

Your assignment:pg 115-120:

100-103, 109-120