Answer:
Step-by-step explanation:
A revolution is 360 degrees.
5/6 of a revolution is 5/6 of 360 degrees.
5/6 × 360 = 300
The corcumference C of a circle is C= 2 x pie x radius
So radius= C/(2pie)
Volume of cylinder= pie x r(squared) x h
Answer:
∠AEC measures 90°
Step-by-step explanation:
Angle AED is a "straight angle", so angles AEC and CED are a linear pair. The angles of a linear pair are supplementary, so angle AEC is supplementary to right angle CED:
∠AEC = 180° -∠CED = 180° -90°
∠AEC = 90°