Asked by Faustina
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
Answered by
Anonymous
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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