Question

Use the exterior angle inequality theorem and the given figure to complete each statement. 16. If b = 50° and c =20°, then d > 17. If a = 90° and c = 20°, then d = 18. If b= 52° and c = 78°, then d = 19-20. If a = 90°, then b = dº 21. If d = 105°, then c = and c = V U bº W pa sagot po plss yung maayos na sagot po sana♥​

Answer 1

Answer + Explanation:

16.

sum of opposite two angles = one exterior angle

50° + 20° = d

d = 70°

17.

A straight line has total 180° angle.

a  +  d  =  180°

90° + d  = 180°

d  = 180° - 90°

d = 90°

18.

sum of opposite two angles = one exterior angle

52°  +  78°  = d

d  = 130°

19/20.

If a = 90° then d = 90°

Then b = 90 - c and c = 90 - b

21.

If d = 105°, then c = 105 - b