Question
in a circle, the angle subtended by the chord at the circumference is 32 degrees.if the radius of the circle is 12cm, calculate the length of the chord
Answers
find other two angles
2 A + 32 = 180
A = 74 degrees
sin A / R = sin 32/c
so
c = 12 sin 32 / sin 74 = 12 * 0.53 / 0.96 = 6.6 cm
2 A + 32 = 180
A = 74 degrees
sin A / R = sin 32/c
so
c = 12 sin 32 / sin 74 = 12 * 0.53 / 0.96 = 6.6 cm
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