Triangle DOG was rotated to create triangle DOG Describe the

Triangle DOG was rotated to create triangle D\'O\'G\'. Describe the transformation using details and degrees.

Solution

D (-2,1) and D\'(2,-1)

O (-3,3) and O\'(3,-3)

G (1,1) and G\'(-1,-1)

by looking at these points its roated about origin

Angle GDO in Anti-clock wise direction 300 degree

Angle G\'D\'O\' in anti clockwise direction 120 degree

So rotation is 180 degree