AXIS OF SYMMETRY

a b

cd

o

e f

g

Label all points on the object

a b

cd

o

e f

g

Always construct projection lines at 90 degrees to the axis of symmetry form points on the object

a b

cd

o

e f

g

a b

cd

o

e f

g

a b

cd

o

e f

g

a b

cd

o

e f

g

a1

Point “a1” is located on the projection line. “a1” is the same distance from the

axial of symmetry as “a” but it is a mirrored image.

a b

cd

o

e f

g

o1

a b

cd

o

e f

g

=

a b

cd

o

e f

g

=== ==

==

==

You can see that the points are equal distance both sides of the axis of symmetry.

a b

cd

o

e fc1 d1

a1b1

f 1 e1

o1

g g1All points are always located as mirrored images on the projection lines

a b

cd

o

e fc1 d1

a1b1

f 1 e1

o1

g g1

Join up the points to construct the mirrored image

a b

cd

o

e fc1 d1

a1b1

f 1 e1

o1

g g1

a b

cd

o

e fc1 d1

a1b1

f 1 e1

o1

g g1

a b

cd

o

e fc1 d1

a1b1

f 1 e1

o1

g g1

The image is always mirrored and the same size as the object.

• Previous Slide

• Review Axial Symmetry

• Back to Website