4. classify the triangle by its sides. the lengths of the sides are 9, 9, and 9.
a) equilateral
b) scalene
c) obtuse
d) isosceles
7. line a is parallel to line b and m.(angle 7 ) = 135 find m(angle 4)
a) 135
b) 145
c) 45
d) 35
8. find the values of x and y for which the lines are parallel.
a) x = 68, y = 72
b) x = 46, y = 72
c) x = 68, y = 74
d) x = 72, y = 68
11.look at the figure. if angle 1 is congruent to angle 2 , describe the relationship between lines a and b.
a) the lines are perpendicular.
b) the lines are parallel.
c) the lines intersect.
d) the lines are transversals.
12. find the value of x for which the lines are parallel.
a) 63
b) 71
c) 64
d) 72