Step 1) open any prior do now and delete the sketch and restart

Step 2) make sure that the workspace units are MM

Step 3) create a rectangle with its center point as the midpoint on the origin. The rectangle should be 30 by 20. See video below

center poitn rectnagle

Step 4)  Create a semicircle with a radius of 15  (use or or make a circle and cut half off with the scisoors tool

semicircle overrectangle

Step 5) Create an isosceles triangle like this (Dimensions do not have to be exactly like mine)

isoscles triangle

The remaining steps are up to your discretion

Part I . REVOLVE

Step 6) Create a line somewhere and revolve the shape around it

Part II) 2 Extrudes with your own shapews

Create a shape with multiple elements (maybe a circle and a rectangle) Create 2 extrudes with different heights like we did before

 

Screenshot and put in google classroom.