Calculate the volume of this 3D figure

300cm

Step-by-step explanation:

the figure on the bottom would be “length x width x height” so it would be 4x6x12 and that would be

288cm

For the small figure on the top the length would be 1 because 4 - 3 is 1 ,

the width would be 12 and the height would be 1 because the 7 on the side is the height of the whole thing and the 6 is the height not including the figure on top. So for the top figure it would be 1x12x1 which would be

12cm

288+12 =   300cm

point a is the center of this circle.

the ratio of the lengths of (ef/bc) and (ad/ih) is 2: 1.

step-by-step explanation:

probably .5

i can on others if necessary.