This handy **Spectrum Math Grade 4 Answer Key Chapter 8 Lesson 8.3 Symmetrical Shapes**Â provides detailed answers for the workbook questions.

## Spectrum Math Grade 4 Chapter 8 Lesson 8.3 Symmetrical Shapes Answers Key

A figure or shape is symmetrical when one- half of the figure is the mirror image of the other half.

A line of symmetry divides a figure or shape into two halves that are congruent.

A circle is symmetrical.

A circle has many lines of symmetry.

**State whether the line drawn on each figure is a line of symmetry. Write yes or no.**

Question 1.

a.

Answer:

**Yes,** the dotted line drawn on above given figure is a line of symmetry.

b.

Answer:

**Yes,** the dotted line drawn on above given figure is a line of symmetry.

c.

Answer:

**Yes,** the dotted line drawn on above given figure is a line of symmetry.

d.

Answer:

**No,** the dotted line drawn on above given figure is not a line of symmetry.

Question 2.

a.

Answer:

**Yes,** the dotted line drawn on above given figure is a line of symmetry.

b.

Answer:

**No,** the dotted line drawn on above given figure is not a line of symmetry.

c.

Answer:

**No,** the dotted line drawn on above given figure is not a line of symmetry.

d.

Answer:

**Yes,** the dotted line drawn on above given figure is a line of symmetry.

**Label each figure as not symmetrical or symmetrical. If the figure is symmetrical, draw the line (or lines) of symmetry.**

Question 3.

a.

Answer:

**Symmetrical**

Explanation:

The above given figure has only one line of symmetry. So, drawn the line of symmetry.

b.

Answer:

**Symmetrical**

Explanation:

The above given figure has only one line of symmetry. So, drawn the line of symmetry.

c.

Answer:

**Symmetrical**

Explanation:

The above given figure has only one line of symmetry. So, drawn the line of symmetry.

d.

Answer:

**Symmetrical**

Explanation:

The above given figure has four lines of symmetry. So, drawn the lines of symmetry.

Question 4.

a.

Answer:

**Symmetrical**

Explanation:

The above given figure is symmetrical. The figure has both horizontal and vertical line of symmetry. So, drawn the lines of symmetry.

b.

Answer:

**Symmetrical**

Explanation:

The above given figure has only one line of symmetry. So, drawn the line of symmetry.

c.

Answer:

**Not Symmetrical**

Explanation:

The above given figure has no line of symmetry.

d.

Answer:

**Symmetrical**

Explanation:

The above given figure has four lines of symmetry. So, drawn the lines of symmetry.