The radius of a circle is 15 cm and the length of perpendicular drawn from its centre to a chord is 9 cm. Calculate the length of chord.
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Answers
Answered by
1
Step-by-step explanation:
Given r=15
∠AOB=13.1
AB=x
AC=CB=2x
∠AOC=65.5o
sin65.5=2×15x
As sin65.5=0.909
x=0.909×30=27.27
∴ length of AB=27.27
OC=cos65−5×15
=0.414×15
OC=6.21cm
∴ length of chord AB=27.27cm
distance between centre and the chord is 6.21 cm.
Answered by
6
Answer:
distance between centre and chord is 6.21..
Step-by-step explanation:
hope it's helpful ☺️
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