1. Equilateral Triangle
It is a triangle in which all the three sides and angles are equal.
2. Isosceles Triangle
It is a triangle in which two sides are equal and the base angles opposite to the equal sides are also equal.
Sum of the length of the two sides of a triangle will always be greater than the third side, whether it is an equilateral, isosceles or scalene triangle.
Check whether it is possible to make a triangle using these measurements or not?
1. 3 cm, 4 cm, 7 cm
We have to check whether the sum of two sides is greater than the third side or not.
4 + 7 = 11
3 + 7 = 10
3 + 4 =7
Here the sum of the two sides is equal to the third side so the triangle is not possible with these measurements.
2. 2 cm, 5 cm, 6 cm
2 + 5 = 7
6 + 5 =11
6 + 2 = 8
Here the sum of the two sides is greater than the third side so the triangle could be made with these measurements.