Are the two triangles below similar? (5 points) Q
N
25°
9
50
5
1050
50-
3
0
R
M
O No, because the corresponding sides are not proportional

Find the value of the cosine for angle a

If 3x+8=3x+8 is it one solution or no solution

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