Question

Distance of a chord AB of length 10 cm from the centre is 12 cm. Find the diameter of the circle​

Answer 1

Answer:

26 cm

Step-by-step explanation:

Join the center of circle with the chord at its mid point and the end points thereby forming a triangle. Hypotenuse of this triangle will be equal to 13 which will be the radius of the circle.

Diameter = radius × 2 = 13 × 2 = 26cm

Answer 2

Answer:

use the Pythagoreans method

AB= 10 then, radius = 10/2= 5

and height is 12cm

12²+5²

144+25 = 169

square root of 169 is 13

then, radius is 13

diameter is double of radius so 13×2= 26

26 is correct answer

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