Find volume of solids with semi circle cross sections

An intro on how to find volumes of solids with semi-circles cut perpendicular to the x-axis for AP Calculus

[invct]

Ms. Kathryn Steward, you are an angel. Thank you, I was this close to ripping my hair out because I was so frustrated with my homework.

[suly]

omg thank u so much!!! i've been struggling for almost 2 hours and this made me understand so quick :D girl you're like an angel i swear

[vlyn]

Bless your heart, Kathryn Stewart. You helped me overcome my AP Calc homework without crying. THANK YOU.

[lucky]

You explained this very thoroughly and well! Thank you for your video, it truly means a lot!

[thesquirtleking]

Thank you! I couldn't visualize the 3-d aspect of it!

[amna]

Thanks for the explanation! This is really helpful

[krishnannarayanan]

Thank you so much! I was stuck on the part where the radius is actually half the y value.