A circle is radius 5cm. find the length of the chord of distance 3cm from its centre.
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Step-by-step explanation:
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Answer:
Step-by-step explanation:
Given :-
Radius of the Circle, (r) = 5 cm
Distance of the chord from the centre = 3 cm
To Find :-
Length of the chord
Formula to be used :-
Pythagoras theorem
Solution :-
Let AOC is a right angled triangle.
By Using Pythagoras theorem, we get
⇒ AO² + OC² = AC²
⇒ 3² + OC² = 5²
⇒ 9 + OC² = 25
⇒ OC² = 25 - 9
⇒ OC² = 16
⇒ OC = 4
Length of the chord = 4 + 4 = 8 cm.
Hence, the length of the chord is 8 cm.
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