Unit 8 Test Practice

Susan drew a quadrilateral that is a rhombus but not a square. Which shape could she have drawn?

• A

• B

• C

• D

Which statement is NOT true?

• Every rhombus is a square.

• Every square is a rectangle.

• Trapezoids cannot be a rhombus.

• No rectangle is a trapezoid.

Kelvin's teacher is demonstrating how to use indirect measurement to calculate the height of tall structures without getting on a ladder. Another student in the class measures the length of Kelvin's shadow and the shadow of the flagpole. If Kelvin is 5 feet tall, use the diagram to find the proportion that could be used to find the height of the flag pole.

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Which of the following BEST describes all the shapes in the picture?

• Squares

• Rhombus

• Rectangles

• Parallelograms

Triangle ABC is similar to triangle XYZ. What is the length of line segment YZ?

• 7.5 in

• 9.5 in

• 10.5 in

• 13.5 in

The rectangles are similar. Which equation could be used to find the value of x?

• 4x = 98

• 14x = 28

• 7x = 56

• 4x = 21

Triangle STU is similar to triangle EFG. What is the measurement of ∠G?

• 24 degrees

• 28 degrees

• 48 degrees

• 52 degrees

A wooden board is placed against the 6 foot tall fence in Mark's backyard. The board extends 2 feet above the fence and 3 feet behind the fence. Which proportion can be used to find the distance (x) between the bottom of the board and the bottom of the fence?

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Which quadrilateral is a rhombus?

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Quadrilateral ABCD ~ quadrilateral EFGH. What is the length of line segment GH?

• 3 cm

• 4 cm

• 5 cm

• 8 cm