Answer:
using Pythagoras theorem
Step-by-step explanation:
it's option c
If the two chords are congruent, then they must be equidistant from the centre of the circle.
Ans: D
Variance s2 = 788.33333
Standard Deviation s = 28.077274
Count n = 7
Mean x¯¯¯ = 52
Sum of Squares SS = 4730
