Saved Bookmarks
| 1. |
What is the percentage increase in the area of a triangle , if its each side is tripled ? |
|
Answer» initial SIDE be a unitsArea = (√3)a²/4 sq. unitsNow, side is TRIPLED,new side, a' = 3aNew AREA = (√3)(3a)²/4 =9×[(√3)a²/4] =9×(initial area)Increase in area = 9×(initial area) - (initial area) = 8 ×(initial area)% increase = (increase/initial area)×100 =[8 ×(initial area)/(initial area)]×100 = 800 % |
|