Select all the options below that correctly fill in the blank. A is a subcategory of polygon. A) triangle
B) line segment
C) ray
D) octagon

Select all that apply​

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

F(x)=5/6x+3 which of the following is true

The function f(x)= -(x+5)(x+1) is down. what is the range of the function?