The sum of opposite angle of quadilateral is 180 degree. So,
And
The sum of angle HIJ and angle HGJ is 180 degree. So there angle are supplementary angle.
Determine the measure of angle HGJ.
The sum of angle H and angle J is also 180 so angle H and angle are supplemntary angles.
Determine the measure of angle H or angle J (Both are equal).
The measure of angle H and angle J is 90 degree.
So all four angles measure can be found.
Answer:
Blank 1: are
Blank 2: 180
Blank 3: 113
Blank 4: Supplementary
Blank5: 1/2(180) = 90
Blank 6: Yes
Blank 7: Can