A transformation that does not change the size or shape of a geometric object is known as which of the following? A an identity transform
B a complete mapping
C a congruent movement
D a rigid motion

Simplify. 4+3/7x-2-2/7x a. 2-5/7x b. 6-1/7x c. 2+1/7x d. 6+5/7x

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?

Which expression gives the distance between the two points 2 5 and 4 8