Question

find the measure of angle made by intersecting line at the vertex of an equilateral triangle​

Answer 1

Answer:

all angle in equilateral ∆ are 60°

Answer 2

find the measures of the angles made by the intersecting lines at the vertices of an equilateral triangle

1 In an equilateral triangle , all angles are equal and sum of the angles in a triangle is 180°.

2 Let x be the equal angle of equilateral triangle.

3 In ΔABC,

4 ∠A+∠B+∠C=180°

5 As, it is given that ,

6 ∠A=∠B=∠C=x.

7 ⇒x+x+x = 180°

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