The length of chord of A circle is 30 CM and it's distance from the centre is 8 CM find the radius of circle 10 CM
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Answer:
17 cm is the radius of the circle.
Step-by-step explanation:
In the attached picture, AB is the 30 cm chord.
The 8cm line CD from center of circle will be perpendicular to the chord AB
Also, CD bisects the chord AB
AC is the radius of the circle
Now, Let's calculate AC through pythagoram theorem
AC² = CD² + AD²
⇒ AC² = 8² + 15²
⇒ AC² = 64 + 225
⇒ AC² = 289
⇒ AC = 17 cm
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