The area of a triangle is 13 square feet. if the base of the triangle measures 4 feet, what is its height?

Which is a true statement comparing the graphs of x^2/6^2-y^2/8^2 = 1 and x^2/8^2-y^2/6^2 the foci of both graphs are the same points. the lengths of both transverse axes are the same. the directrices of = 1 are horizontal while the directrices of = 1 are vertical. the vertices of = 1 are on the y-axis while the vertices of = 1 are on the x-axis.

Ineed with question three. i don't understand how i'm supposed to achieve 3 marks.

Given right triangle abc, what is the value of tan(a)?