Question

M angle r=130 and m angle s=80. find m angle t. the diagram is not to scale. hint: draw the diagonals and use propertied of triangles. My answers are: A. 65degrees. B. 70degrees C. 35degrees and D 80 degrees 

Answer 1

R = 130
S= 80

since line UR & RS are identical and Line UT & ST are identical than angle U = angle S = 80

now you have 130 + 80 +80 = 290

angle T = 360 - 290 = 70

answer is B

Answer 2

by the way, angle is formed from 2 line segment that are the same point