Choose the abbreviation of the postulate or theorem that supports the conclusion that the triangles are congruent. Given: ∠C, ∠F are rt. ∠'s; AC = DF; ∠B = ∠E HA

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe