Math, asked by tali38, 1 year ago

Radius of a circle is 25dcm.distance of a cord from the centre IS 24dcm.find d length of the cord CD.​

Answers

Answered by ankan080205
2

Step-by-step explanation:

Given - A circle with centre O and radius 25 cm. Join O and C and D.

Drop an perpendicular to CD.

now

 {25}^{2}   =   {x}^{2}   +  {24}^{2}  \\ 625  =  {x}^{2}  + 576 \\ 625 - 576 =  {x}^{2}  \\  \\ 49 =  {x}^{2}  \\ x = 7 \\ 2x = 2 \times 7 = 14

Perpendicular from chord bisects the chord.

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