Which of the following are necessary when proving that the opposite angles of a parallelogram are congruent?
check all that apply.
a. corresponding parts of similar triangles are similar.
b. angle addition postulate.
c. segment addition postulate.
d. corresponding parts of congruent triangles are congruent.

From the figure and statement provided, select the proper to prove statement. through a point outside a line one line can be drawn parallel to the line. mn= ab ab + bc= ac mis parallel to ! ab=bc als parallel to b

14 pointslet x be the seats in the small van and y the seats in the large van. how many seats does the large van have? a company uses two vans to transport worker from a free parking lot to the workplace between 7: 00 and 9: 00a.m. one van has 9 more seats than the other. the smaller van makes two trips every morning while the larger one makes only one trip. the two vans can transport 69 people, maximum.how many seats does the larger van have?

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles