Saved Bookmarks
| 1. |
Prove that sum of all angle of triangle is 180 |
| Answer» For that let us assume ABC is an equilatral triangle.So, AB=BC=CATherefore,In ∆ABC- AB=AC (given)So, ang.A=ang.B (angle oppo.to equal sides are equal)Similarly,we can equal every angle and take them xX+x+x=1803x=180X=60There ang.A=B=C=60 | |