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

## Spectrum Math Grade 3 Chapter 9 Posttest Answers Key

**Check What You Learned**

**Divide each shape into the given amount of equal parts. Then, label each piece with the appropriate fraction.**

Question 1.

a. halves

Answer:

Simply Divide the given Rectangle into Equal amount of two halves with Equal parts. Then, Label each part with the fraction as 1 / 2 and 1 / 2 which is as shown below.

b. thirds

Answer:

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

Question 2.

a. halves

Answer:

Simply Divide the given Square into Equal amount of two halves with Equal parts.Then , Label each part with the fraction as 1 / 2 and 1 / 2 which is as shown below.

b. fourths

Answer:

Simply Divide the given Circle into Equal amount of fourths with Equal parts. Then ,Label each part with the fraction as 1/4, 1/4, 1/4 and 1/4 a shown below.

**Name each four-sided figure.**

Question 3.

a.

Answer:

The given four-sided figure is Rectangle having 4 sides and 4 vertices. Each vertex contain an angle 90 degrees.

b.

Answer:

The given four-sided figure is Rhombus having 4 equal sides(each side having Equal Length) and 4 vertices.

c.

Answer:

The given four-sided figure is a normal Square Shape contain 4 sides which are Equal in Length.

d.

Answer:

It is an Arrow navigator used to indicate the Directions.

**How many sides or edges are there on these figures?**

Question 4.

a.

Answer:

The Given Figure is Square which contain four sides having Equal Length. Moreover, The diagonals of this square are perpendicular.

b.

Answer:

The given Diagram is a cube having 6 faces which are in Square shape and also contain the uniform dimensions.

c.

Answer:

The given diagram is a Rectangle and it contain four sides or edges. Rectangle contain a greater side known as Length and Shorter side is known as Width.

d.

Answer:

The given diagram is a triangular pyramid and it contain six sides or edges containing a triangular base.