Two buildings are 15 m apart. From the roof of the higher building, the angle of depression to the roof of the smaller building is 27º. The angle of depression to the base of the smaller
building is 63º. Determine the height of the smaller building.​

Which expression is equivalent to 3^3 + 2^2?

Select the correct answer what is the most direct use of a compass in geometric constructions? a. to draw congruent angles b. to draw arcs of a given size c. to draw perpendicular lines d. to draw straight lines reset next next

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.