Prove that each angle in an equiangular (not equilateral) triangle is 60 degrees. Must be a two-column proof with statements and reasons!

I need this for tomorrow so please only put legitimate answers.

Abc will undergo two transformations to give aa'b'c' which pair of transformations will give a different image of aabc if the order of the transformations is reversed? a. a rotation 90' counterclockwise about the origin followed by a reflection across the y-axis b a translation 5 units down followed by a translation 4 units to the right c. a reflection across the x-axis followed by a reflection across the y-axis a rotation 180'clockwise about the ongin followed by a reflection across the y-axis reset next 2 omentum all rights reserved o atk me anything o o e

Iam a rectangle. my perimeter is 60 feet. how much are do i cover?

Find the distance between (7,-6) and (-3,-9)