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the length of a minor arc is 2/9 of the circumference of the circle. write the measure of the angle subtended by the arc at the centre of the circle. |
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Answer» According to the question Length of minor ARC = 2/9 of circumference of the circle we KNOW that, Lenght of arc = theta/360 * 2πr circumference of circle = 2πr Apply in the question theta/360 *2 π R = 2/9 * 2 πr theta/360 = 2/9 theta = 2/9 * 360 theta = 80. So, the MEASURE of angle SUBTENDED is 80°. |
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