Question

In a circle of diameter 50 cm, the length of a chord is 22.5 cm. Find the length of major arc of the chord.

please say how to do this question​​

Answer 1

Answer:

SOLUTION

OA = OB = 25 cm

And chord AB = 25 cm

Hence  is an equilateral triangle.



∠OAB = 

Hence 

⇒ 

⇒