If ABCDE~ PQRST, find the scale factor of ABCDE to PQRST and the perimeter of each polygon

Acylinder and its dimensions are shown. which equation can be used to find v, the volume of the cylinder in cubic centimeters?

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

The angle of depression from the top of the tree to the tip of the shadow is 25°. find the height of the tree to the nearest tenth. a. 16.8 feet b. 18.2 feet c. 23.4 feet d. 39.7 feet