La teoría asiática o teoría de origen único propuesta por Alex Hrdlicka (1937)​

Which sequence of transformations on preimage ∆abc will not produce the image ∆a'b'c'? a. reflection across the line y = x b. rotation 180° clockwise about the origin followed by a reflection across the line y = -x c. reflection across the x-axis followed by a reflection across the y-axis d. reflection across the line y = -x followed by a rotation 180° counterclockwise about the origin e. reflection across the y-axis followed by a rotation 90° clockwise about the origin

Why did macarthur want to invade china? why did truman oppose this?

Find the coordinates of a if b(-9,-10) is the midpoint of ac and c has the coordinates of (-1,9)