Try to construct triangles using matchsticks. Some are shown here. Can you make a triangle with
(a) 3 matchsticks?
(b) 4 matchsticks?
(c) 5 matchsticks?
(d) 6 matchsticks?
(Remember you have to use all the available matchsticks in each case)
Name the type of triangle in each case.
If you cannot make a triangle, think of reason for it.
(a) We can make a triangle by using 3 matchsticks. According to the property of a triangle the sum of two sides is greater than the length of the remaining side. It can be an equilateral triangle as it has all equal sides.
(b) By using 4 matchsticks it is not possible to make a triangle because in a triangle the sum of the two sides is greater than the length of the remaining side.
(c) Yes we can form a triangle by using 5 matchsticks.
(d) With the help of 6 matchsticks we can form a triangle.