Two of the three sides of a triangle are 20 and 15. which of the following numbers is not a possible perimeter of the triangle?
a. 52
b. 57
c. 62
d. 67 e.72

Which is equivalent to 10/12? options: 10/18 5/6 3/12 9/11

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

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