i-can

Write down this problem on your

COMMUNICATORBe prepared to share your work

with the class.

Page ? of your INB

review and prepare for the test.

Greg needs to wash the windows on the second floor of a building. He knows the windows are 15 feet above the ground. Because of dense shrubbery, he has to put the base of the ladder 4 feet from the building. What ladder length does he need?   

 

15.5 ft

ITEMS of BUSINESS

• Last day to retake Ch 5 test is Tuesday, Jan 6th.

• TEST NEXT TIME. No retakes.

• End of Term TEST on Friday/Monday. No retakes. You can use up to 6 3x5 cards (one from each chapter).

Have your homework out on your desk.

RE- Try this CHALLENGE question:

Find the area of the composite figure. Round to a tenth.

32+(100.5

2)=82.388

REVIEW

Chapter 6’s

Write them down on your 3x5 card.

Remember It’s worth

An extra 1% on your test!

5

Know how to solve equations with exponents & roots.

1. x2 = 400 2. = 7 3. 1331 = x3 4. = 6

How do you undo a square (x2 ) ?

How do you undo a square root? ( ) ?

How do you undo a cube? (x3) ?

How do you undo a cube root? ( ) ?

√❑

3√❑

Square it

Cube it

#1

leg

Be able to label parts of a RIGHT triangle.

a b c leg hypotenuse

#2

If you’re finding a LEG…

HYP2 – leg2√❑If you’re finding a HYPOTENUSE…

leg2 + leg2√❑LEG

LEG

HYPOTENUSE

Know how to USE the Pythagorean theorem.#3

Find the Missing Side Lengths

5? 9

6

?

2)3

12

?1) 3)

12

13 6.7 12.4

Pyth

ag

ore

an

Th

eore

m C

on

vers

e o

f th

ePyth

agore

an T

heore

m

then

then

If

If

=

√𝑎2+𝑏2=𝑐 =

√𝑎2+𝑏2=𝑐

Know the CONVERSE P-THRM & how to use it.#4

Are these Right Triangles?

6

8

A trianglewith these

sides6, 9, 12

2)11 60

1) 3)10 61

yes no yes

Greg needs to wash the windows on the second floor of a building. He knows the windows are 15 feet above the ground. Because of dense shrubbery, he has to put the base of the ladder 4 feet from the building. What ladder length does he need?   

 

Gus is framing a house. The length of the house is 30 ft. The width is 22 feet. Once the outside walls are framed, Gus measures the diagonal. It measures 37.2 ft. to the nearest tenth. Draw a Picture and determine if Gus has a perfect rectangular house? 

15.5 ft

Yes, it is rectangular (or right)

Use p-thrmYou know it’s a rt. triangle. Find the missing side length.  

 

Use converseYou know the side lengths. Find out if it’s a right triangle.  

 

(-7, 3) and (-2, 8)

A. Plot the Points

B. Create a Rt.Triangle. The lineconnecting the pointsis the hypotenuse

C. Use the PythagoreanTheorem to find thedistance.

5

5?

= ?

7.1

Be able to apply the p-thrm to different scenarios.#5Find distances!

Find areas!

Area of a Rectangle

A = lw

w

l

Important Formulas

Important FormulasAREA of a circle A = πr2

That’s rxr NOT 2xr !!

radius

AREA of a Semi-circleA = ½ πr2

AREA of a Triangle

A = ½ bh

h

b

radius

diameter

Area of a Circle – Area of a Rectangle

Find areas!

𝑑𝑖𝑎𝑔𝑜𝑛𝑎𝑙=√𝑙2+𝑤 2+h2  

𝑑=√10 2+6 2+15 2  

𝑑=19𝑐𝑚2

Finddiagonalsof boxes.

Do the CIRCLED PROBLEMS on the PRACTICE TEST. When you finish, you can work on the rest of the problems.

PRACTICE TEST

CIRCLED ANSWERS

What’s your Score?

Each answer part is worth 1 point

28 possible

MULTIPLY BY 100 = PERCENT CORRECT

Now, finish the rest of the Practice Test!!!

Worksheet

Practice Test