<h3>
Answer: 31 degrees</h3>
This is because rotations preserve angles. The angle measures won't change. That's why angle BCD is the same as angle B'C'D'. This applies to any rotation (regardless how much you rotate), any translation, any reflection, and any dilation.
Note: dilations will change the side lengths
Answer:
D
Step-by-step explanation:
-(-4)=+4
so it is -20+4
Answer:
39 liters
Step-by-step explanation:
6.5×6=39
so 39 litres
The final answer for this question is 591.28 cubic cm
Parameterize the lateral face

of the cylinder by

where

and

, and parameterize the disks

as


where

and

.
The integral along the surface of the cylinder (with outward/positive orientation) is then



