The areas of two similar triangles are 49cm2 and 16cm2 respectively. If the altitude of the bigger triangle is 6.3cm, find the corresponding altitude of the smaller triangle.
From the top of a tower hmeter high, the angle of depression of two objects, which are in line to the foot of the tower is α and β(β>α). What is the distance between the two objects?
Riley is always curious in creating formulas, for solving mathematical problems, of his own by repeated trial and error method. One day he found a formula for finding the surface area of the hexagonal pyramid. What should be the correct formula for the surface area of the hexagonal pyramid?