Students can use the **Spectrum Math Grade 3 Answer Key Chapter 9 Pretest** as a quick guide to resolve any of their doubts.

## Spectrum Math Grade 3 Chapter 9 Pretest Answers Key

**Check What You Know**

Question 1.

Divide the circle into fourths. Label each fourth with the appropriate fraction.

Answer:

Divide the given Circle into Equal amount of four halves with Equal parts. Then , Label each part with the fraction as 1 / 4, 1 / 4 , 1 / 4 and 1 / 4 which is as shown below.

Question 2.

Divide the square into thirds. Label each third with the appropriate fraction.

Answer:

Divide the given Square into Equal amount of three halves with Equal parts. Then , Label each part with the fraction as 1 / 3, 1 / 3 and 1 / 3 which is as shown below.

Question 3.

Divide the rectangle into sixths. Label each sixth with the appropriate fraction.

Answer:

Divide the given Rectangle into Equal amount of six halves with Equal parts. Then , Label each part with the fraction as 1 / 6, 1 / 6 , 1 / 6 , 1 / 6, 1 / 6 and 1 / 6 which is as shown below.

**Complete the following.**

Question 4.

Figure: square

Number of Sides: ____________

Number of Square Corners: _____________

Number of Other Corners: ______________

Answer:

Square corner is nothing but having four sides with similar length and the four corners which exist at right angles (90 degrees)

Number of Sides:Â 4

Number of Square Corners:Â 4

Number of Other Corners:Â Â 4

Question 5.

Figure: circle

Number of Sides: ____________

Number of Square Corners: _____________

Number of Other Corners: ______________

Answer:

Square corner is nothing but having four sides with similar length and the four corners which exist at right angles (90 degrees)

Number of Sides:Â Â 0

Number of Square Corners: 0

Number of Other Corners: 0

Question 6.

Figure: rectangle

Number of Sides: ____________

Number of Square Corners: _____________

Number of Other Corners: ______________

Answer:

Square corner is nothing but having four sides with similar length and the four corners which exist at right angles (90 degrees)

Number of Sides: 4

Number of Square Corners: 4

Number of Other Corners: 4

Question 7.

Figure: cube

Number of Square Faces: ____________

Number of Triangle Faces: _____________

Number of Rectangle Faces: _____________

Number of Edges: ____________

Answer:

A cube doesn’t have any Triangle (or) Rectangle face but contain six Equal faces that are listed as shown below.

Number of Square Faces:Â 6

Number of Triangle Faces: 0

Number of Rectangle Faces: 0

Number of Edges: 12

Question 8.

Figure: square pyramid

Number of Square Faces: ____________

Number of Triangle Faces: _____________

Number of Rectangle Faces: _____________

Number of Edges: ____________

Answer:

In a square Pyramid the rectangular faces are totally absent but contain a Single Square face and the number of Edges are eight.

Number of Square Faces: 1

Number of Triangle Faces:Â 4

Number of Rectangle Faces: 0

Number of Edges: 8

Question 9.

Figure: sphere

Number of Square Faces: ____________

Number of Triangle Faces: ____________

Number of Rectangle Faces: ____________

Number of Edges:Â ____________

Answer:

A sphere has a single circular face and no Vertices and No edges .Therefore number of Square , Triangular , Rectangle faces are given as zero.

Number of Square Faces: 0

Number of Triangle Faces: 0

Number of Rectangle Faces: 0

Number of Edges: 0

**Circle the shapes named.**

Question 10.

Circle the quadrilaterals.

Answer:

Usually , Quadrilaterals are of six types .In the given diagrams , The Quadrilaterals are Rhombus , Arrow Navigator, Trapezoid and parallelogram having 4 sides and 4 vertices.

Question 11.

Circle the rectangles.

Answer:

In the above given Diagram, the rectangles are Square and rectangle as shown below.

Question 12.

Circle the rhombuses.

Answer:

Following are the Rhombuses which are as shown below.