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Question
The chord of a circle of radius 10 cm subtends a right angle at its centre. The length of the chord (in cm) is ______.
Options
`5/sqrt(2)`
`5sqrt(2)`
`10sqrt(2)`
`10sqrt(3)`
MCQ
Fill in the Blanks
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Solution
The chord of a circle of radius 10 cm subtends a right angle at its centre. The length of the chord (in cm) is `underlinebb(10sqrt(2))`.
Explanation:
`AB = sqrt(OA^2 + OB^2)`
= `sqrt(10^2 + 10^2)`
= `10sqrt(2) cm`
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