Determine the type of triangle that is drawn below
Need help , plss !

Which statements regarding the diagram are true? check all that apply.

How do you use the elimination method for this question? explain, because i really want to understand!

If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)