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°
Answer:
epic
Step-by-step explanation:
epic
Help with what tho you need help with what I don’t see it
Answer:
A
Step-by-step explanation:



This option works
Well you do 228/12 to find your answer and that is 19 and to check you do 12*19=228