Answer:
Step-by-step explanation:
14 degrees. It equals half the intercepted arc.
(See attached graphic)
The third term of the sequence is 20
So area=1/2 base times height
50=1/2 base times height
multiply both sides by 2
100=base times height
base=4height
100=4height times height
100=4height^2
divide 4
25=height^2
squarer root
5=height
subisute
base=4(5)
base=20
height=5