CircleHard
Question
The area of an equilateral triangle inscribed in the circle x2 + y2 - 2x = 0 is :
Options
A.
B.
C.
D.none
Solution
Coordinates of point P will be (acos30o, asin30o) P lies on the circle,
⇒ a2cos230o + a2sin230o
= 2acos30o
⇒ a2 = 2acos30o
⇒ a = √3
Area =
⇒ a2cos230o + a2sin230o
= 2acos30o
⇒ a2 = 2acos30o
⇒ a = √3
Area =
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