Which is taller, the Burj Khalifa or a stack of the money it cost to build the Burj Khalifa

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

Answer this question! 30 points and brainliest!

Use complete sentences to differentiate between a regular tessellation, and a pure tessellation. be sure to include specific types of polygons in your explanation.