hello. your answer is -3. I just took the assignment. hope it helps.
Answer:
Yessirrr you are!!!
Step-by-step explanation:
I believe you would answer like this: r=C÷2pi
Answer:
90°, 270°
Step-by-step explanation:
2r sin(Ф/2) = c
2r sin (Ф/2) = √2r
divide both sides by 2r
sin (Ф/2) = √2r/2r
sin(Ф/2) = √2/2
From the unit circle sin is √2/2 at 45°, and 135°
so Ф/2 = 45
Ф=90°
and Ф/2 = 135
Ф= 270°
You would round it to
320 million