the formula for the volume cylinder with radius r and height h is pie times the radius times the radius times the height. write this as an algebraic expression

In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.

What does the sign of the slope tell you about a line?

Which of the following represents the length of a diagonal of this trapezoid?