If 18,20,26 are the side lengths of a triangle would the triangle be acute , obtuse or right?

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

How many grams the dog will eat in 3 days?

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents