Page 289 - NUMINO_WB_4B
P. 289
134-P3-1
Symmetrical Figures
Look at the symmetrical figures along the line of symmetry. Find the
lengths of DF, BC, and BF.
a
AD
3 cm 1 cm 5 cm F
B CE
b
Step 1. The figures above are symmetrical figures. If the two figures are
folded along the line of symmetry, what happens to triangles
ABC and DEF?
Step 2. Find the lengths of DF, BC, and BF.
Symmetrical Figures
Look at the symmetrical figures along the line of symmetry. Find the
lengths of DF, BC, and BF.
a
AD
3 cm 1 cm 5 cm F
B CE
b
Step 1. The figures above are symmetrical figures. If the two figures are
folded along the line of symmetry, what happens to triangles
ABC and DEF?
Step 2. Find the lengths of DF, BC, and BF.
