you have two triangles RST and LMN in triangle RST angle degrees angle "s 49" ST 296 and RT 240 in triangle LMN angle "N 69" degrees LN 370 and MN=302, are the triangles similar?

Arectangular prism is 3 meters long, 6 meters wide, and has a height of 9 meters. what is its surface area?

The median of a data set is the measure of center that is found by adding the data values and dividing the total by the number of data values that is the value that occurs with the greatest frequency that is the value midway between the maximum and minimum values in the original data set that is the middle value when the original data values are arranged in order of increasing (or decreasing) magnitude

I'm confused on this could anyone me and show me what i need to do to solve it.