The avarage weight of 12 people is 64.5kg what is their total weight?

Which statements regarding the diagram are true? check all that apply.

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

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