This handy Spectrum Math Grade 4 Answer Key Chapter 8 Lesson 8.3 Symmetrical Shapes 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.