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a chord of a circle 8 cm long subtends an angle of 120 degree at the center find the radius of the circle​
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a chord of a circle 8 cm long subtends an angle of 120 degree at the center find the radius of the circle​

User Joanna
by
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1 Answer

4 votes

Answer:

Chord = 2 • sine (Central Angle) • radius

radius = 8 cm / 2 * 0.86603

radius = 4.6187776405 cm

Explanation:

User Ashicus
by
6.3k points
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