Home » Mathematics » A chord 20cm long subtends an angle of 60° at the circumference of a circle,…A chord 20cm long subtends an angle of 60° at the circumference of a circle,… A chord 20cm long subtends an angle of 60° at the circumference of a circle, what is the diameter of the circle the nearest cm? A. 12cm B. 20cm C. 23cm D. 60cm E. 80cm Correct Answer: Option C Explanation Related Posts In the diagram, QRT is a straight line. If angle PTR = 90°, angle PRT… Find the value of (frac{tan 60^o – tan 30^o}{tan 60^o + tan 30^o}) Given that (sqrt{2} = 1.414), find without using tables, the value of (frac{1}{sqrt{2}}) Simplify (frac{4}{a-3}-frac{1}{a+3}) Find r, if 6r78 = 5119 Find the values of k in the equation 6k2 = 5k + 6
