Micah drew a picture of a flag on graph paper. He will color the flag red and blue. What is the area, in square units, of the part of the flag Micah will color red?

pls help!

Acone is placed inside a cylinder. the cone has half the radius of the cylinder, but the height of each figure is the same. the cone is tilted at an angle so its peak touches the edge of the cylinder’s base. what is the volume of the space remaining in the cylinder after the cone is placed inside it?