Sagot :
Answer:
Then measure of angle D is equal to 140°
Step-by-step explanation:
(2y)° = (3y-40)°
(40)° = (3y-2y)°
40° = y
consecutive angles are supplementary.
180° - 40°= 140°
Answer:
Then measure of angle D is equal to 140°
Step-by-step explanation:
(2y)° = (3y-40)°
(40)° = (3y-2y)°
40° = y
consecutive angles are supplementary.
180° - 40°= 140°