Answer:
all travel at the same speed, speed of light in a vacuum, 2.998x10^8 m/s
they all have magnetic and electrical fiels perpendicular to one another along the propagation of the wave
they all are transverse and so can be polarised
they are all progressive waves and so can transfer energy
they can all be reflected, refracted and diffracted
and finally they all obey velocity=wavelength x frequency
hope that helped