= = (–1, ) A′ r(90º, O)(A) = = (–3, ) B′ r(90º O)(B) = ( , 4) C′= r(90º, O)(C) = = ( , 4) D′ r(90º, O)(D) Then graph and A′, B′, C′, D′. Graph 10. r(180º, O)(ABCD). Graph 11. r(270º, O)(ABCD). The vertices of have coordinates 5), 1), and 1). What are the coordinates of the 12. ΔPQR P(1, Q(3, R(–2, vertices of r(90º, O)(ΔPQR)?
A′ = r(90º, O)(A) = (–1, ) B′ = r(90º O)(B) = (–3, ) C′= r(90º, O)(C) = ( , 4) D′ = r(90º, O)(D) = ( , 4) Then graph A′, B′, C′, and D′. 10. Graph r(180º, O)(ABCD). 11. Graph r(270º, O)(ABCD). 12. The vertices of ΔPQR have coordinates P(1, 5), Q(3, 1), and R(–2, 1). What are the coordinates of the vertices of r(90º, O)(ΔPQR)?