angle EFD is 90 degrees because its a right angle I also just calculated that angle def is 30 degrees this means the measure of angle EDF is
60 degrees.
why
The sum of the angles in any triangle is always 180 degrees. Since we know that angle EFD is 90 degrees and angle DEF is 30 degrees, we can calculate the measure of angle EDF by subtracting the sum of the other two angles from 180 degrees:
180 degrees - 90 degrees - 30 degrees = 60 degrees
Therefore, the measure of angle EDF is 60 degrees.