Answer:
β = 140 - α
we know that the "missing" angle is 40° since 40 + 140 = 180
we also know that the total sum of angles in a triangle is 180
so β = 180 - 40 - α
or β = 140 - α
Step-by-step explanation:
A year has 12 months so 1 month = 1/12 year. t = 3 months = 3/12 year = 1/4 year
It’s D that is the answer
Answer: 1.6km
Step-by-step explanation: 2.8km - 1.2km
The student is still north from school.
I hope this answer helped! :)
Answer:
A
Step-by-step explanation:
(3x -14) + 9x is 90 degrees, so if you add 90 it becomes 180 degrees
It is 90 degrees because you can see that there is a right angle there
