Page 238 - Math Smart - 7
P. 238
When we cut a symmetric figure into two parts, one part is a mirror image of the
Spotlight
other part.
We find examples of
symmett7 in architecture,
pottery, mosaics, rugs,
fabrics and artwork.
A mandala is a symbol
used in Hinduism If you place a mirror along the line of If you fold the shape along the line of
and Buddhism. symmetry, the reflection is a mirror symmetry, one half folds perfectly over
Many mandalas are image of half of the shape. the other half.
symmetrical. Discuss the
lines of symmetry in this
mandala with a partner.
r
s Figure 10.1 Symmetry occurs all around us — in nature, buildings and in patterns.
Check My
Understanding
O How many axes of symmetry does each shape have? Draw all the axes of
symmetry.
a) A b)
Q State whether the dotted line in each figure Is an axis of symmetry of the
figure.
a) i b)
E Shapes and Symmetry
UNIT 10
