Posted by **Breanna** on Tuesday, September 9, 2008 at 12:13pm.

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

C(7,2). Thank you.

- Math -
**MATTHEW**, Tuesday, September 9, 2008 at 12:38pm
how can i help my son matthew about division and subtract borrow . thanks

- Math -
**bobpursley**, Tuesday, September 9, 2008 at 3:55pm
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.

## Answer This Question

## Related Questions

- TRIG - Triangle FGH has vertices F(0, 10), G(10, 0), and HR(1, -1). After ...
- Trigonometry - Triangle PQR has vertices P(0, 1), Q(0, -4), and R(2, 5). Find ...
- Trigonometry - Triangle PQR has vertices P(0, 1), Q(0, -4), and R(2, 5). Find ...
- Trigonometry - Triangle PQR has vertices P(0, 1), Q(0, -4), and R(2, 5). Find ...
- Math - Please illustrate how to rotate triangle A(2,0), B(7,0),C(7,2) 90 degrees...
- math - use transformation to rescue animals, start out at the x. the animal is ...
- Alegebra - Triangle ABC is dilated with a center at the origin and a scale ...
- Algebra - I'm stuck!! Can someone please help me with this problem?? A triangle ...
- geometry - In the xy - plane, line l has equation y= -x. Point P lies on l and ...
- math - A triangle has vertices with coordinates (2, 0), (3, -1), and (-2, -5). ...

More Related Questions