I think it would be 10.5, although I'm not sure I hope this helps
Answer:
See Explanation
Step-by-step explanation:
The question is incomplete, as the sector, its area and the angle at the center are not given.
I will solve this using the following illusration
The area of a sector is:
Assume that:
The equation becomes
Simplify
Take: 
Cross Multiply
Solve for 
Take square roots
Answer:
The y-intercept is the height of the candle before it was lit
Step-by-step explanation:
The y-intercept is at 0 on the x-axis meaning that not time has passed, so the candle is at its original height
Short Answer Only B is true.
Reasoning
A
A is not True. CBG is not equal to DBG. They are supplementary but not equal.
B
B is correct.
C
CBG = DBF are given as equal. It is not necessarily true that they are supplementary. That would be true only if they were both 90o
D
The two angles are equal, but they are not supplementary. They would be only if both were 90o which is shown not to be the case.
Tanα=h/d
d=h/tanα, h is 50m for both calculations...
a=50/tan30
b=50/(tan60)
The distance,d, between them is
d=a-b
d=50/tan30-50/tan60
d≈57.7m
