Recent content by abizan

Ahh thank you, now it makes sense!

Homework Statement The owners of a small island want to bring in electricity from the mainland. The island is 80m from a straight shoreline at the closest point. The nearest electrical connection is 200m along the shore from that point. It costs twice as much to install cable across water than...

Oh I get it now so the radius is one of the rectangle's sides. Thanks for the help!

wow I completely missed that. Thank you so much!

hmm okay I get this but I'm confused as to why the rectangle is only half of the cylinder? If a rectangle forms the cylinder, shouldn't the width of the rectangle be the diameter of the cylinder rather than the radius?

Is the circumference of the circles on the cylinder equal to the lengths of the rectangle? Because I tried that and I did not get the right answer...

Homework Statement A rectangle with a perimeter of 40 cm is rotated around one of its sides creating a right cylinder. What is the largest possible volume for this cylinder? Homework Equations Volume of a cylinder= pi*r^2*h Perimeter of a rectangle= 2x + 2L The Attempt at a Solution I know...