Question

In triangle DEF Angle DEG is an exterior angle and angle DEG=140 and angle DFE=50 find the other interior angles​

Answer 1

Answer:

Step-by-step explanation

DFE + FDE = 140 (sum of two interior angle of triangle is equal to exterior angle )

50 + FDE = 140

FDE = 140 - 50

FDE = 90

Hence , other interior angle is 90 degree