zero is the centre of a circle of radius 5cm op pendicular to a b and p pendicular to c d a b c d a b is equal to 6 cm equal to 8 cm diameter PQ
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GOOD MORNING HAVE A FANTASTIC DAY
tejukarne123:
hey its your 1st question and I had answered it 1st
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Answer:
PQ= 7cm
Step-by-step explanation:
ince the perpendicular from the center of the circle to a chord bisects the chord.
P and Q are the mid points of AB and CD
In right triangles OAP and OCQ, we have
OA^2 = OP^2 + AP^2 and OC^2 = OQ^2 + CQ^2
5^2 = OP^2 + 32 and 52 = OQ^2 + 4^2
OP^2 = 5^2 - 3^2 and OQ^2 = 5^2 - 4^2
OP^2 = 16 and OQ^2 = 9
OP = 4 and OQ = 3
PQ = OP + OQ = 4 + 3 = 7 cm
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