Circle chord

Calculate the length of the chord of the circle with radius r = 10 cm, the length of which is equal to the distance from the circle's center.

Correct answer:

x =  8.9443 cm

Step-by-step explanation:

r2=x2+(x/2)2 r2=x2+x2/4 r2=5/4x2 x=2r/5 x=8.9443 cm

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