Find the best solution of ncert class 9th chapter triangles . Please help me to solve this exercise 7.2 question number 8 . Find the best and easiest solution of this question , also find the easiest solution of this question.Show that the angles of an equilateral triangle are 60° each
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Let ABC be an equilateral triangle as shown below:
Here, BC = AC = AB (Since the length of all sides is same)
⇒ A = B =C (Sides opposite to the equal angles are equal.)
Also, we know that
A+B+C = 180°
⇒ 3A = 180°
⇒ A = 60°
∴ A = B = C = 60°
So, the angles of an equilateral triangle are always 60° each.