Which triangle is a 30°-60°-90° triangle?
10
5/3
010

41/17 as a decimal rounded to the nearest hundredth

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

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?