Slope=4,passing through (7,4)

What is the exact volume of the cylinder 1.5 m 2.5 m

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2