What is the surface area of a cylinder with base radius 2 and height 6?
Either enter an exact answer in terms of T or use 3.14 for I and enter your answer as a decimal.

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap