4) Find the volume of the solid of revolution when the region S bounded by by f(x) = 2x2, x=0 (y axis), y=2, and y = 0 (x-axis)
rotates around the y-axis

1. 2. ∠b and ∠y are right angles. 3.? 4.? which two statements are missing in steps 3 and 4? ∠x ≅ ∠c △abc ~ △zyx by the sas similarity theorem. ∠b ≅ ∠y △abc ~ △zyx by the sas similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem.