Question

A chord of a circle is 30 cm long. It's distance from the centre is 8 cm. Find the radius of the circle​

Answer 1

Answer:

17 cm

Step-by-step explanation:

by the theorem,

the perpendicular drawn from the centre of the circle to the chord makes on right angle triangle to the radius

30 / 2 = 15

By the theorem of Pythagoras ,

Hypotenuse^2 = base^2 + height^2

= 15^2 + 8^2

= 225 + 64

= 289

Hypotenuse^2 = 289

Hypotenuse = √289

= 17

Radius = 17 cm

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Answer 2

Step-by-step explanation:

the above picture is the answer of the question