What is the name of the triangle in which two sides have the same length and the corresponding two angles have the same size? a. right c. scalene b. isosceles d. obtuse

Just tell me how to set up the equation.

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

2.5 milligrams is equivalent to how many grams