Geometry Practice Test 2

Question : 18 of 40

Marks: +1, -0

Find the length of a chord of a circle with radius 17 cm if the chord is at the distance of 15 centimeter from the centre.

Solution:

Let AB be the chord and O be the centre of the circle.
AC =

√{OA^2-OC^2}

AC =

√{17^2-15^2}

AC =

√{289-225}

AC =

√{64}

AC = 8 cm
So, AB = 16 cm

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