Answer:
? = 70°
Step-by-step explanation:
180 - 120 = 60° (120° and 60° are supplementary angles)
180 - 50 - 60 = 70° (all triangle interior angles total 180°)
Speed of the train : distance traveled / time of the travel = 10.1/(0.5)=20.2 mph
Answer:
The scale factor is 3.
Step-by-step explanation:
Take the new pupil size divided by the original pupil size
6.3/2.1 = 3
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