The blue object has been rotated 180 degrees clockwise about point (1,2). Which is the correct image? A
B
C
D

Whoever answers this question will be the brainliest

Let's focus on the point (3,4) which is the upper left-most point of the blue figure. Draw a line through (3,4) and (1,2) which is the point we're rotating the blue figure around. This line goes through (-1,0) which is on figure C. Specifically, it is the lower right-most point of the figure. The rotation flipped things around so to speak (it's not a reflection though).

This trick of drawing a line through the rotation center only works when we are doing 180 degree rotations.

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.

113.1

step-by-step explanation:

v=4

3πr3=4

3·π·33≈113.09734