Geometry Review 6th Grade

Geometry Review

6th Grade

Triangles

• The sum of the three angles is 180^o

• You can create an equation to find a missing angle measurement

• The formula for the area of a triangle is A =  $\frac{1}{2}bh$   or A =  $\frac{bh}{2}$  

• b = base and h = height of the triangle

Multiple Choice

How do you find the AREA of a TRIANGLE?

• Length x Width

• base x height divided by 2

• 1/3 (Length x width)

• base x height

Multiple Choice

Find the missing angle.

• 122

• 58

• 115

• 123

Multiple Choice

Find the measure of the missing angle.

• 90^o

• 10⁰

• 130^o

• 50^o

Multiple Choice

What is the area of this triangle?

• 12 sq. cm.

• 6 sq. cm.

• 12 cm

• 6 cm

Rectangles & Parallelograms

• Area is the surface measurement of a two-dimensional figure

• The formula for the area is A = bh

• b is the base and h is the height of the rectangle or parallelogram

• Area is measured in square units

• For example:   $in^2,\ cm^2,\ ft^2,\ m^2$  

• Formulas can be rewritten to solve for missing information

•  $b\ =\ \frac{A}{h}$  or  $h\ =\ \frac{A}{b}$  

Multiple Choice

How do you find the area of a rectangle?

• Length + Length + Length + Length
• Length + Width
• Length x Width
• Width x Width

Multiple Choice

Greyson and Preston have a piece of paper that is 10 inches by 9 inches. What is the area of the paper?

• 100 sq. in.

• 79 sq. in.

• 90 sq. in.

• 90 in.

Multiple Choice

Area = 36 ft²

^{What is the height of the rectangle?}

Remember: A = bh

• 9 ft

• 27 ft

• 4 ft

• 18 ft

Multiple Choice

What is the area of the parallelogram?

• 35 in²

• 2 in²

• 12 in²

• 35 in

Multiple Choice

Find the area of the figure.

• 10 cm²
• 24 cm²
• 12 cm²
• 20 cm²

Multiple Choice

What is the area of the rectangle?

• 15 sq cm

• 15 cm

• 2

• 16 cm

Rectangular Prisms

• Volume is the amount of space a 3D object occupies

• Area is measured in unit squares (square units), volume is measured in unit cubes (cubic units)

• Figures are packed with unit cubes even if they aren't all visible

• Volume can be found by finding the area of the base (B) and multiplying it by the height (h) of the object

• V = Bh (B = bh) or Length x Width x Height (l x w x h)

Multiple Choice

What is volume?

• The amount of space of a 2-D object

• The amount of space in a 3-D object

• Water

• Area

Multiple Choice

Find the Volume of the given figure.

• 30 ft³

• 36 ft³

• 96 ft³

• 11 ft³

Multiple Choice

What is the volume?

• 72

• 27

• 1.5

• 272

Multiple Choice

If a rectangular prism has a base that is 5 inches by 6 inches and height of 13 inches, what is the volume?

• 24 in³

• 390 in³

• 143 in³

• 24 in²

Multiple Choice

What does the "B" in the volume formula V = B x h stand for?

• Bottom of the object
• Box
• Between
• Area of the base

The Coordinate Plane

• The coordinate plane has 4 quadrants (I, II, III, and IV)

• The horizontal axis is the x-axis

• The vertical axis is the y-axis

• The intersection of the two axis (number lines) is the origin which is located at (0, 0)

• Quadrant I (+, +) , Quadrant II (-, +)

• Quadrant III (-, -), Quadrant IV (+, -)

Multiple Choice

Which axis runs horizontally?

• x

• y

Multiple Choice

Which axis runs vertically?

• x

• Y

Multiple Choice

How do you write an ordered pair?

• (X,X)

• (Y,X)

• (X,Y)

• (Y,Y)

Multiple Choice

The axes divide the coordinate plane into four sections called what?

• ordered pairs

• origins

• quadrants

• coordinate plane

Multiple Choice

In which quadrant is the following point?

(-3, 12)

• Quadrant I

• Quadrant II

• Quadrant III

• Quadrant IV

Multiple Choice

Which letter matches the coordinate (4, -6)?

• G

• Z

• K

• None of the above