Harry builds steps for the entrances of stadiums. He built the steps shown below and wants to cover the steps with paint. If s = 4 m, m = 11 m, n = 8 m, and w = 13 m, what is the surface area of the steps?

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?