- Angle 150^0
Fold a neatly cut paper into two halves either lengthwise or widthwise. Now fold the
one-half again to make two equal parts, each of which is one-fourth of the original
paper. Select the portion in which the one-half is divided into two. In that portion,
follow the procedures of obtaining angles measuring 30^0 and 60^0. Thus the folding
has two angles 30^0 on one side and 150^0 on the other.
- Angle^22210
Take a neatly cut paper which forms 90^0 on all corners. When the vertex is halved it
forms 45^0 on either side. If the 45^0 measure is halved again it forms^22210.
- Angle 135^0
Take a sheet of paper and fold it across, forming 90^0 on either side of the impression.
Choose one half of the paper and fold the 90^0 measure again into two halves to form
450 each on either side. Thus the two impressions created form 135^0 on one side and
450 on the other.
AB
C
O
135
O
1500 300
