An irregular parallelogram rotates 360° about the midpoint of its diagonal. how many times does the image of the parallelogram coincide with its preimage during the rotation?
a.
2
b.
4
c.
6
d.
8

the science club has 42 people and the robotics club has 33

step-by-step explanation:

answer is  

c.

36

step-by-step explanation:

55 degrees because 55+55=110 degrees

for this case we have that by definition, the volume of a cylinder is given by:

where:

r: it's the radio

h: it's the height

we have as data that:

substituting:

so, the cylinder volume is

option d