At the beginning of a class period, half of the students in a class go to the library. later in the period, half of the remaining students go to the computer lab. if there are eight students remaining in class, how many students were originally in the class?

Which triangles could not be similar to triangle abc ? triangle a b c where angle b is a right angle. side a b is 15 cm. side b c is 8 cm. side a c is 17 cm. select each correct answer. right triangle g h i with right angle at h. g h is 77 centimeters. g i is 85 centimeters. h i is 36 centimeters. right triangle j k l with right angle at k. j k is 60 centimeters. j l is 68 centimeters. k l is 32 centimeters. right triangle m n o with right angle at n. m n is 35 centimeters. m o is 37 centimeters. n o is 12 centimeters. right triangle d e f with right angle at e. d e is 22.5 centimeters. d f is 25.5 centimeters. e f is 12 centimeters.