The diameter of a circle is 26 cm and length of the chord from the centre is 30 cm,find
the length of the chord.
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Answer:
Diameter = 26 cm
chord = 24 cm
Perpendicular drawn from the centre of the circle to the chord bisects the chord.
OD ⊥ AB
So, AD = DB
AO = OC (Radii)
In ∆ODA,
OD2 + AD2 = OA2
⇒ OD2 + 122 = 132
⇒ OD2 + 144 = 169
⇒ OD2 = 169 - 144 = 25
⇒ OD= 5 cm
Thus, the distance of the chord from the centre is 5 cm.
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Answer:
root 731/2
Step-by-step explanation:
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