A chord of a circle of radius 10 cm subtends a right angle at the centre. The length of the chord (in cm) is(a) 52 (b) 102 (c) 52 (d) 103 [CBSE 2014]

A chord of a circle of radius 10 cm subtends a right angle at the cent

1.	A chord of a circle of radius 10 cm subtends a right angle at the centre. The length of the chord (in cm) is(a) 52 (b) 102 (c) 52 (d) 103 [CBSE 2014]
Answer» A chord of a circle of radius 10 cm subtends a right angle at the centre. The length of the chord (in cm) is (a) $5 \sqrt{2}$ (b) $10 \sqrt{2}$ (c) $\frac{5}{\sqrt{2}}$ (d) $10 \sqrt{3}$ [CBSE 2014]