The chord of a circle of radius 8 cm subtends a right angle at its centre. The length of the chord is: [1]
A. 8 cm
B. 8√2 cm
C. 7 cm
D. 7√2 cm
Answer:B
The chord of a circle of radius 8 cm subtends a right angle at its centre. The length of the chord is: [1]
A. 8 cm B. 8√2 cm C. 7 cm D. 7√2 cm
Explanation: Since, ∠AOB = 90°