I need help solving this

Polygons efgh and e′f′g′h′ are shown on the coordinate grid: what set of transformations is performed on efgh to form e′f′g′h′? a. a translation 1 unit to the left followed by a 90-degree counterclockwise rotation about the origin b. a translation 1 unit to the right followed by a 90-degree counterclockwise rotation about the origin c. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the right d. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the left

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

The measures of the legs of a right triangle are 15m and 20m . what is the length of the hypotenuse