If two angles have the same angle measure then they are said to be
a- complementary
b- congruent
c- adjacent

Given tan∅=4/3 and π< ∅< (3π)/2; find cos2∅ a. -24/25 b. 24/25 c. -24/7 d. -7/25

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie