Answer:
To find the volume of a composite 3D figure, draw any necessary planes to view the figure as basic three dimensional figures, then:
add basic figure volumes belonging to the composite shape.
subtract basic figure volumes NOT belonging to the composite figure.
Step-by-step explanation:

Answer:
^^
Step-by-step explanation:
I just pressed 27/90 on the calculator hahahha
Answer:
AC is double the length of AB
so AC = 12
Step-by-step explanation:
mark me as brainliest ❤️
Answer: its B
Step-by-step explanation:
because the circle is open and its the greater than sign