Answers

2015-05-23T12:21:37+05:30
A shape formed by joining any 3 non-collinear points is a triangle.
non-collinear means NOT IN THE SAME LINE.
take any three points on paper which are non collinear n join you will get a triangle
 it is seen that since we take 3 points there are 3 corners to the triangle.it's shape is like this :
Δ
1 5 1
2015-05-23T12:41:42+05:30
Triangle has three Angles
triangle is formed by joing any 3 non-collinear points.
it has 3 corners
" Δ " it will be like this
1 5 1