a chord of circle of radius 4cm is at a distance 3cm from the centre then the length of the chord is
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Answer:
5.2916
Step-by-step explanation:
The radius divides the chord into two equal sides.
The distance between the center and the chord is the height.
Let one side of the code be x.
The hypotenuse of the right angled triangle formed is the radius of the circle.
The length x can be given as :
4^2 - 3^2 = 7
The length x = square root of 7
The total length of the chord = 2x
The length of the chord = 2 × square root of 7
Square root of 7 = 2.6458
2x = 2 × 2.6458 = 5.2916 cm
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