omoyayioladimeji1303 omoyayioladimeji1303

31-08-2020
Computers and Technology

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A chord 6.6cm long is 5.6cm from the centre of a circle, calculate the radius of the circle

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uzair81 uzair81

31-08-2020

Answer:

chord 30cm long is 20cm from the centre of a circle calculate the length of a chord ... Find the length of an arc of a circle of radius 5.6cm which subtends an angle of 60°at the centre of the circle of the ...

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tramserran tramserran

31-08-2020

Answer: radius = 6.5 cm

Explanation:

The distance from the center to the chord is measured at its perpendicular.

Therefore we can use Pythagorean Theorem to find the radius.

r² = 5.6² + 3.3²

r² = 31.36 + 10.89

r² = 42.25

[tex]\sqrt{r^2}=\sqrt{42.25}[/tex]

r = 6.5

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