Two buildings are 100 m apart across a street. A sunbather at point P finds the angle of elevation of the
roof of the taller building to be 25° and the angle of
depression of its base to be 30°. Find the height of the
taller building.
Please round to the nearest hundredth.

Graph a triangle (xyz) and reflect it over the line y=x to create triangle x’y’z’. describe the transformation using words. draw a line segment from point x to the reflecting line, and then draw a line segment from point x’ to the reflecting line. what do you notice about the two line segments you drew? do you think you would see the same characteristics if you drew the line segment connecting y with the reflecting line and then y’ with the reflecting line? how do you know?