Question

Q 10. Find the length of a chord which is at a distance
ra which is at a distance of 8 cm from the centre of a circle
of radius 10 cm.​

Answer 1

Answer:

12

Step-by-step explanation:

r=10cm

distance =8cm

a right triangle is formed

base^2=H^2-P^2

=100 - 64 = 36=6^2

base=6

chord=2(6)

=12

Answer 2

Given ,

r= 10cm .

distance = 8cm

Right angle triangle formed

By using Pythagoras theorem.

(Hypotenuse)^2=B^2+H^2

10^2=B^2+8^2

100=B^2+64

B^2=100-64

=36

B^2=6^2

B=6

Chord =2×6

=12 cm

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