Enter any [b]UPPER FUNCTION[/b] (labeled upper(x)).[br]Enter any [b]LOWER FUNCTION[/b] (labeled lower(x)).[br]Enter your [b]lower and upper limits of integration[/b] ("a" and "b", respectively).[br][br]Slide the [b]FILLING[/b] slider all the way to the left. [br]For this solid, note how cross sections parallel to the yAxis are [color=#ff7700][b]isosceles trapezoids[/b] [/color]with its LONGER BASE lying within the coordinate plane [b]This LONGER BASE = upper(x) - lower(x)[/b]. [br][br]You can also alter the measures of the CONGRUENT BASE ANGLES using the [b]ANG[/b] slider. [br]In addition, you can alter the RATIO of shorter base (length) to the LONGER BASE (length). [br]You can also move the [b]show [/b]slider to reflect this surface about the coordinate plane. [br][br]You can move this [color=#ff7700][b]isosceles trapezoid[/b][/color] by sliding the [b]MoveMe[/b] slider OR by dragging the [b]LARGE WHITE POINT[/b] along the xAxis. [br][br]You can modify any of these parameters (functions, limits) at any time. [br][br][color=#1e84cc][b]To explore in augmented reality, see the directions below this applet. [/b][/color]

1) Open up GeoGebra 3D app on your device. [br][br]2) Go to the [b]MENU[/b] (horizontal bars) in the upper left corner. Select OPEN. [br] In the Search GeoGebra Resources input box, type [b]d5jrvxkc[/b][br] (Note this is the resource ID = last 8 digits of the URL for this resource.)[br][br]3) In the resource that uploads, zoom in/out if needed.[br]  You can alter the functions upper(x), lower(x). [br] You can also move sliders a, b, MoveMe, Filling, ratio, and show.[br] (Be sure to leave everything else alone.)