Question

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A chord of length 48 cm is drawn at a distance of 7 cm from the centre of a circle. Calculate the radius of the circle.​

Answer 1

Answer:

radius^2=(48/2)^2+7^2

=24^2+7^2

=576+49

radius^2=625

radius=25

Answer 2

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a²+7²= 48²

a²+49=2304

a²= 2304- 49

a² =2255

a= √2255

a= 2255