Divide the nonagon radially into 9 congruent, equilateral isosceles triangle. Each triangle has vertex angle of 360°/9 = 40°.
Interior angle of polygon = 180°-40° = 140°.
Sum of interior angles = 9(140°) = 1260°
Answer:x= 2b/e -c
Step-by-step explanation:
Distance around a circle is CIRCUMFERENCE
DIAMETER*PI=CIRCUMFERENCE
I would say the answer is B. Best of luck
Answer: t=1125/52=21.635
Step-by-step explanation: