Geometry and TrigonometryEasyAngle of an equilateral triangle
Geometry and Trigonometry practice question
Each side of a triangle has the same length. What is the measure, in degrees, of each of its angles?
Answer: 60
Equal sides mean equal angles: 180 ÷ 3 = 60.
Common wrong answers
- If you answered 45
- 45 is 90 ÷ 2, unrelated here.
- If you answered 90
- 90 is a right angle; an equilateral triangle has none.
- If you answered 180
- 180 is the sum of all three angles.
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