Consider the following statements: 1. There exists a regular polygon whose exterior angle is 70°. 2. Let n ≥ 5. Then the exterior angle of any regular polygons of n sides is acute. Which of the above statements is/are correct?
Consider the following statements: 1. There exists a regular polygon whose exterior angle is 70°. 2. Let n ≥ 5. Then the exterior angle of any regular polygons of n sides is acute. Which of the above statements is/are correct? Correct Answer 2 only
Exterior angle of a n sides regular polygon = 360/n
Statement I:
360/n = 70°
There exists no natural number n for which 360/n = 70°
⇒ Statement I is false
Statement II:
If n ≥ 5, Exterior angle ≤ 360/5
⇒ Exterior angle ≤ 72
⇒ Exterior angle is acute
⇒ Statement II is true
∴ Only statement II is true.
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Feb 20, 2025