2D Geometry Review

Corresponding Sides/ Proportions

100

What do we call sides that are in the same position in similar shapes?

Corresponding Sides

200

If one side of a triangle is 4.25 and its corresponding side in a similar triangle is 12.75, what do you do to 4.25 to get 12.75?

Multiply by 3

300

Triangle DEF is similar to triangle LMN. Which equation CANNOT be used to find the length of line segment LM ?

Answer choice A. 

400

The two images below are similar. Which proportion can be used to calculate the length

of AB in inches? Select TWO correct responses.

A. AB/7 = 14/4

B. 7/14 = AB/4

C. 7/AB = 14/4

D. AB/7 = 4/14

E. 14/AB = 4/7

A. AB/7 = 14/4  and E. 14/AB = 4/7

500

Triangle FGH is similar to triangle JKL. Use a proportion table to find the missing side lengths.

x= 40, y=30

Circumference of Circle/ Area of Circle

100

If the area of a circle is 48 square inches, what is the approximate radius of the circle? Round to nearest tenths.

The radius is approximately 3.91.

200

A circular fountain has a circumference of 35 feet. Which expression can be used to find the diameter of the fountain in feet?

A. 35/pi

B. 35pi

C. 35/2pi

D. 35(2pi)

A. 35/pi

300

What measurement is closest to the area of the circle in square miles? 

The area of the circle is_____________ because A=_______________________

The area of the circle is 113.04 square miles because A=_(3.14)(6)(6).

400

The diameter of a circular wheel is 22 inches.

Which of the following is closest to the area of the wheel in square inches?

A. 379.94 in²

B. 69.08 in²

C. 121 in²

D. 2122.64 in²

A. 379.94 in²

500

The diameter of a circular wheel is 36 inches.

Which of the following is closest to the area of the wheel in square inches?

A. 113.04 in²

^{B. 4,069.44 in2}

^{C. 56.52 in2}

^{D. 1,017.336 in2}

^{D. 1,017.336 in2}

Triangle Angle Measurement

100

Create an equation that can be used to find the measure of each angle in the triangle.

Angle A= 5x+4

Angle B= 13x-4

Angle C=2x

5x+4+13x-4+2x = 180

200

Create an equation that can be used to find the measure of each angle in the triangle below.

3x+2x+10x-6=180

300

Create an equation to solve of x.

2x+10+50+30=180

400

Create an equation to solve for x

2x+50+3x-10=180

500

What is the angle measurement for the two missing angles ?

56 degrees and 74 degrees

Scale Sides/Proportion

100

What is the term for two ratios that are equivalent?

Proportional

200

If a backyard has a width of 3 and a similar backyard has a width of 6, what is the scale factor?

2

300

Roland created a scale drawing of his backyard. In the scale drawing, 1 inch represents 8 yards. The length of back fence on the scale drawing is  5 and 2/4 inches. What is the actual distance of the back fence?

A. 40 1/2 Yards

B. 12 1/2 Yards

C.40 Yards

D. 44 Yards

D. 44 Yards

400

Mackenzie created a scale drawing of his backyard. In the scale drawing, 1 inch represents 6 yards. The length of back fence on the scale drawing is  7 and 3/4 inches. What is the actual distance of the back fence?

46.5 yards

500

Ms. Williams created a scale drawing of her classroom. In the scale drawing, 1 inch represents 12.25 yards. The length of classroom on the scale drawing is  8 and 2/4 inches. What is the actual distance of the classroom?

104.125 Yards

Composite Figures

100

What are both the formula of a trapezoid ?

A= 1/2(b+b)h

A=(b+b)h/2

200

What is the formula for a rectangle?

A = bh

300

A diagram of Jordan's backyard is shown.

What is the area of the backyard?

250 

400

What is the area of the figure?

A = 82.5 cm²

500

What is the area of the shaded region in the figure?

A= 104.06cm²