we are doing rotation of a rigid object about a fixed axis

(1) locate the CM of a right-angled triangle, WITHOUT the use of calculus. One good starting point would be to divide it into three pieces: two smaller right-angled triangle plus a rectangle. Must show your work. Note: You must start from the definition for the center-of-mass in Ch9 of our textbook. Do not use the definition found from your math book.

(2) Cuta piece of cardboard paper into a right-angled triangle. Suspend it on a string at two different locations to pinpoint the center of mass experimentally. Does the result agree with part (a) above? Show some pictures