In the given figure ar(adf) =ar(cda) and ar(cdf) = ar(cdf). show that abdc and cdfe are trapeziums.

Anyone know? will mark brainliest if you're correct!

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)