Page 82 - NUMINO Challenge_B2
P. 82
Problem solving
1 Square ABCD is folded to form the equilateral Key Points
triangle BCE. Find the measure of angle CGD.
The angle before
FG folding is equal to
E the angle after
folding.
A D
BC
2 A piece of rectangular tape is folded as shown Find the angles that
below. Find the measure of angle . are 34°.
34
Shapes 79
1 Square ABCD is folded to form the equilateral Key Points
triangle BCE. Find the measure of angle CGD.
The angle before
FG folding is equal to
E the angle after
folding.
A D
BC
2 A piece of rectangular tape is folded as shown Find the angles that
below. Find the measure of angle . are 34°.
34
Shapes 79
