What is the measure of a)160 degrees
b)20 degrees
c)19 degrees
d)161 degrees

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ab=9, and ac=12, find hc.

Ben wants to play a carnival game that costs $2. in his pocket he has 5 red tickets worth 35 cents each, and 15 blue tickets worth 10 cents each. which of the following systems of inequalities correctly represents the constraints on the variables in this problem? let represent the red tickets and b represent the blue tickets.

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?