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02-11-2021
Mathematics

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a chord of length 24cm is 13cm from the centre of the circle calculate the radius of the circle

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02-11-2021

Answer:

Radius = 17.69 cm to nearest hundredth.

Step-by-step explanation:

The line of length 13 cuts the chord in half and is perpendicular to it.

So by Pythagoras:

r^2 = 13^2 + 12^2

r^2 = 169+144 = 313

r = 17.6918

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