Why are stars drawn as different sizes on a sky atlas, like as shown with Orion?

Giving the right triangle jkl what is the value of cos (l)

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

Alow pressure system is formed when an air mass cools over a cool surface and sinks. true or false