Big Ideas Math Geometry Answers Chapter 4 Transformations Verkko12.2.2021 · Both triangles are isosceles with 2 units base and 2 units altitude. ΔMNP is the image of ΔTUV after rotating the second 90° Rotating 90° is (a, b) → (-b, a) T(2, 0) → M(0, 2) U(3, 2) → N(-2, 3) V(4, 0) → P(0, 4) ΔQRS ≅ ΔEFG Both triangles are right isosceles with 3 units length. ΔEFG is the image of ΔQRS after rotating the ...