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Distance of a chord OP from the centre of a circle is 6 cm. If diameter of this circle is 20 cm, then what will be the sum of radius and length of chord OP? |
20 cm 18 cm 26 cm 16 cm |
26 cm |
We have, Diameter = 20 Radius = OA = 10 We know that, AO2 = AP2 + OP2 102 = AP2 + 62 AP2 = 100 - 36 AP2 = 64 AP = 8 AB = 2 × AP AB = 16 AB + AO = 16 + 10 = 26 cm |
