What is the approximate total length of iron edging needed to create the square frame and the two diagonals

List the 10 possible samples (without replacement) of size 3 3 that can be obtained from the population of five officials.

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .