2D Geometry

7th Grade Math: The Test that Shall not be Named Day 8

​2d Geometry

TEKS 7.9B I can calculate circumference and area of circles

TEKS 7.9C Determine area of composite figure

TEKS 7.11 C Write and Solve Geometric Equations

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Multiple Choice

What movie is this?

• The Starving Games

• The Hunger Games

• Catching Fire

• Mocking Jay

Area

• The number of square units needed to cover the surface of a closed figure

• Area of a rectangle: A = lw

• Expressed as units squared

Fill in the Blanks

Fill in the Blanks

Draw

mark in the base and height of the triangle

Multiple Choice

Which is the formula for the area of a triangle?

• A=basexheight

• A=base+height

• Area=base/2

• Area=basexheight/2

Draw

another way of writing the formula for a triangle is

Fill in the Blanks

Draw

Multiple Choice

what is the name of this animal

• calf

• bull

• kankaroo

• cow

Multiple Choice

what is the name of this animal

• cheetah

• tiger

• cat

• lion

Multiple Choice

what is the name of this animal

• chiken

• hen

• duck

• goose

(write)

Fill in the Blanks

Multiple Choice

What is circumference?

• space inside of a circle

• a set of points equidistant from one another

• distance around a circle

• crosses through the center point across a circle

Draw

DRAW TIME!

Can you Make a drawing with ONLY SHAPES???

Multiple Choice

Select the correct formula for finding area of a circle

• $$2\pi r$$  

• $$\pi r^2$$  

• $$\pi d$$  

• l x w

Multiple Choice

Find the area.

• $$6.28km^2$$  

• $$18.84yd^2$$  

• $$3.14yd^2$$  

• $$12.56km^2$$  

Multiple Choice

Find the area.

• $$200.96yd$$  

• $$50.24yd^2$$  

• $$200.96yd^2$$  

• $$74.16yd^2$$  

Multiple Choice

What is after Q on a keyboard?

• A

• B

• W

• U

• J

Poll

Which flavor of ICE CREAM do you like most?

• Chocolate

• Vanilla

• Mint

• Strawberry

• OTHER

Poll

what do you think chickens say?

• Chirp

• Caka-doodle-doo

• buk buk

• meow

8.1 Circumference of Circles

Circumference of a Circle

This image shows that circumference is the distance around the entire circle - the red lines length

Multiple Choice

Name the pictured part of the circle.

• Diameter

• Sector

• Radius

• Central Angle

• Arc

Multiple Choice

What is a straight line that goes through the center of a circle from side to opposite side?

• Diameter

• Circumference

• Radius

• Center

Fill in the Blanks

Poll

If you could go anywhere on a trip... which of these would you visit first?

• Bali

• Alaska

• Madrid

• Singapore

• Zambia

Poll

Which would be the most fun lesson to attend at Hogwarts?

• Charms

• Potions

• Defence Against the Dark Arts

• Care of Magical Creature

• Transfiguration

Composite Figures

Finding Areas of Weird Shapes

Multiple Choice

What is the area of this figure?

• 60 square inches

• 78 square inches

• 68 square inches

• 76 square inches

Multiple Choice

What is the area of the shaded region? Write your answer as a whole number or a decimal rounded to the nearest hundredth.

• 77 square inches

• 83 square inches

• 160 square inches

• 55 square inches

Open Ended

What are the shapes in this figure?

Multiple Choice

What is the area of the composite figure?

• $$210\ ft^2$$

• $$105\ ft^2$$

• $$206\ ft^2$$

• $$115\ ft^2$$

Angle Relationships

Multiple Choice

Never gonna give you up, never gonna let you down, _____

• Never gonna run around and desert you

• Never gonna make you cry

• Never gonna say goodbye

• Never gonna tell a lie, and hurt you

Multiple Choice

What is Rick Astley’s full name?

• Richard Paul Astley

• Paul Astley

• Lisa Astley

• Richard Astley

Multiple Choice

What is the last line in Never Gonna Give You Up?

• Never gonna run around

• Never gonna say goodbye

• Never gonna give you up

• Never gonna tell a lie, and hurt you

Multiple Choice

Which are pairs of vertical angles?

• ∠COB and ∠COA

• ∠AOD and ∠AOC

• ∠COB and ∠AOD

• ∠BOD and ∠AOD

Multiple Choice

How are these angles related?

• Vertrical

• Complementary

• Adjacent

• Supplementary

Multiple Choice

Find the m∠1

• 67

• 113

• 180

• 23

Multiple Choice

Tell whether the angles are complementary or supplementary. Then find the value of x.

• Complementary; x=25

• Complementary; x=5

• Supplementary; x=25

• Supplementary; x=5

Multiple Choice

Which equation could you use to solve for the value of x?

• 3x + 10 − 2x = 180

• 3x + 10 = 180

• 3x + 10 + 2x = 180

• 3x + 10 = 2x

Multiple Choice

If m∠1 = 30°, then m∠3 =

• 30°

• 60°

• 150°

• undetermined

Poll

CODE WORD ALERT

CIRCLES

• Click this

• No wait click this

• OOPS I meant click this

• What