Quiz about Unit 12 Two-Dimensional Shapes

Question 1

The fifth grade class is designing a new stage for the school play. Below is one of the designs they are considering. What is the name of the polygon?

Accepted Answer

triangle

Answer

quadrilateral

Answer

hexagon

Answer

pentagon

Question 2

Mrs. Wang asked Molly to draw an octagon on the board. If Molly drew the octagon correctly, how many sides did she draw?

Accepted Answer

8

Answer

7

Answer

9

Answer

11

Question 3

How many regular hexagons do you see in the figure?

Accepted Answer

1

Answer

2

Answer

3

Answer

4

Question 4

Which polygon is a pentagon?

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 5

Which type of polygon has 6 sides?

Accepted Answer

hexagon

Answer

quadrilateral

Answer

octagon

Answer

pentagon

Question 6

What is the measure of the unknown angle?

Accepted Answer

40

Answer

50

Answer

180

Answer

220

Question 7

Which of the following is an obtuse, scalene triangle?

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 8

Dan cut his square sandwich in half as shown below. Which type of triangles are formed?

Accepted Answer

right, isosceles triangles

Answer

equilateral triangles

Answer

acute, isosceles triangles

Answer

right, scalene triangles

Question 9

How many acute angles does an obtuse triangle have?

Accepted Answer

2

Answer

0

Answer

1

Answer

3

Question 10

What is the sum of the angle measures of a triangle?

Accepted Answer

180

Answer

60

Answer

90

Answer

360

Question 11

Which type of quadrilateral is shown?

Accepted Answer

rhombus

Answer

trepazoid

Answer

rectangle

Answer

square

Question 12

What is the measure of each angle of a rectangle?

Accepted Answer

90

Answer

45

Answer

180

Answer

360

Question 13

Which type of quadrilateral is NOT also a parallelogram?

Accepted Answer

trapezoid

Answer

square

Answer

rhombus

Answer

rectangle

Question 14

How many pairs of parallels sides does a trapezoid have?

Accepted Answer

1

Answer

4

Answer

3

Answer

2

Question 15

What is true about every rhombus?

Accepted Answer

all sides are equal

Answer

all angles are equal

Answer

Exactly one pair of sides is parallel.

Answer

No pairs of sides are parallel.

Question 16

What is the best name for a shape that has 4 equal sides, 4 equal angles, and two pairs of parallel sides?

Accepted Answer

square

Answer

rectangle

Answer

rhombus

Answer

quadrilateral

Question 17

Which of the following is NOT another name for a square?

Accepted Answer

pentagon

Answer

Parallelogram

Answer

rectangle

Answer

rhombus

Question 18

Which quadrilateral is NOT a parallelogram?

Accepted Answer

trapezoid

Answer

square

Answer

rhombus

Answer

rectangle

Question 19

How are a rhombus and a square alike?

Accepted Answer

Both have equal sides.

Answer

Both have equal angles.

Answer

Both have exactly one pair of parallel sides

Answer

Neither have any sets of parallel sides.

Question 20

Which of the following statements is NOT true?

Accepted Answer

A trapezoid always has two sets of equal length sides.

Answer

A square is always a parallelogram.

Answer

A rectangle is always a quadrilateral.

Answer

The interior angles of a quadrilateral always have a sum of 360 degrees.

Question 21

How are a parallelogram and a trapezoid different?

Accepted Answer

A trapezoid has only 1 pair of parallel sides, but a parallelogram has 2.

Answer

A parallelogram has only 1 pair of parallel sides, but a trapezoid has 2.

Answer

A trapezoid has 4 right angles, but a parallelogram doesn't need to have 4 right angles.

Answer

A parallelogram has 4 right angles, but a trapezoid doesn't need to have 4 right angles.

Question 22

Which two words can describe the same shape?

Accepted Answer

Rectangle and Square

Answer

Parallelogram and Triangle

Answer

Trapezoid and Square

Answer

Rectangle and Octagon

Question 23

Which generalization is incorrect?

Accepted Answer

All rhombuses are squares.

Answer

All squares are rhombuses.

Answer

A rhombus has 4 equal sides.

Answer

All rectangles are parallelograms.

Question 24

Martha says that all rectangles have four equal sides. Is she correct? If she is incorrect, give an example to support why.

Accepted Answer

Martha is incorrect. The four sides of a rectangle are equal only if it is a square.

Answer

Martha is correct.

Answer

Martha is incorrect. The four sides of a rectangle are equal only if it is a rhombus.

Answer

Martha is incorrect. The four sides of a rectangle are equal only if it is a trapezoid.

Question 25

What do all of these polygons have in common?

Accepted Answer

Each appears to have exactly one pair of parallel sides.

Answer

Each appears to be a quadrilateral.

Answer

Each appears to have exactly two pairs of parallel sides.

Answer

Each appears to be a trapezoid.

Question 26

What is the measure of the unknown angle?

Accepted Answer

24

Answer

34

Answer

180

Answer

204

Question 27

The figures below are rectangles. Which generalization is incorrect, based on these figures?

Accepted Answer

All rectangles are squares.

Answer

All squares are rectangles.

Answer

A rectangle can be a square.

Answer

A square can be a rectangle.

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