80 Äá» THI THỏ TUYá»N SINH TIáșŸNG ANH VĂO 10 Sá» GD â ÄT THĂNH PHá» Há» CHĂ MINH NÄ...
Â
4.8 notes
1. Bellwork Find the value of x . 3. If the measure of vertex angle of an isosceles triangle is 112° , what are the measures of the base angles? x = 8 x = 3 34
2. 4.8 Congruence Transformations Transformation: operation that moves or changes a figure Image: the new figure moves figure the same distance in same direction creates a mirror image of original figure turns a figure around the center of rotation (fixed point) Reflection: Reflection: Tran sl ation: Tran sl ation: slides Rotation: Rotation: reflects rotates