Troy was trying to catch up with the rest of his group, who had left earlier on a kayaking trip. troy paddled 8 hours downstream, covering 72 miles before realizing that he had passed his group’s campground. he had to paddle back upstream for 18 miles to get back to his group’s campground. if the trip back upstream took troy 6 hours, how fast was the river flowing (in mph)?

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)