vertex is divided exactly into two halves. Mark the point at which the one lower end
touches the crease formed. Now cut the paper twice with the marked point as one
vertex and the lower two ends as the other two vertices. The resultant figure thus
obtained is and equilateral triangle.
- Right Angled Triangle
Take a neatly cut paper which forms right angles at its vertices. With the vertex
containing the right angle intact cut the paper to form a triangle. The triangle
formed is a right angled triangle.
- Acute Angled Triangle
Take a neatly cut paper and mark an approximate point to denote its centre. Now cut
off a triangle from the centre to any two vertices thus forming an acute angled
triangle.
- Obtuse Angled Triangle
A
B C
θ
C
A
B
110 O
B
C
A
