On each right triangle ,find the tangent of each angle that is not the right angle.

Which is an equation for the nth terms of the sequence 12,15,18,21

Write an equation for the function that includes the points (1,4/5) and (2,2/3)

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?