Question

please illustrate how to rotate a triangle counterclockwise from the origin with coordinates A(2,0),B(7,0),
C(7,2). Thank you.

Answer 1

how can i help my son matthew about division and subtract borrow . thanks

Answer 2

Please click <u>Post a New Question</u> and then ask your question. Also -- your question isn't clear. What exactly does Matthew need to know about division? Do you also want to know about how to borrow in subtraction problems?

Answer 3

http://www.aaastudy.com/div.htm

http://www.aaastudy.com/sub.htm

Answer 4

For each point to be rotated, use this set of equations:

x'=x*cos(theta)+y*sin(theta)
y'=-x*sin(theta)+y*cos(theta)

where x,y is the original point, and theta is the chosen angle of rotation counterclockwise.