5. The angles of a triangle are 3xº, (2x + 2009 and (5x - 40°). Find the angles. Hence
that the triangle is an equilateral triangle.
Answers
Answered by
3
Answer:
Step-by-step explanation:
Sum of all angles in triangle = 180.
=>3x + 2x+20+5x - 40 = 180
=> 10x = 200
=> x= 20°.
Thus the angles are 3 * 20 , (2*20+20), (5*20 - 40) i.e. 60°, 60° , 60°.
Since All the angles are of 60° it is an equilateral triangle.
Similar questions