Answer:
- 6) True, False, False, True;
- 7) x = 135, y = 45.
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Question 6
a. Diagonals of parallelograms bisect each other
b. Parallelograms have four congruent sides
- FALSE, it is true for rhombus
c. Isosceles triangles have 3 congruent angles
- FALSE, it has 2 congruent angles as two sides are congruent.
d. If the endpoints of a line segment are equidistant from a third point, that third point lies on the perpendicular bisector of the line segment.
Question 7
Adjacent angles of a parallelogram are supplementary and opposite angles are congruent.
Find x:
- x + 45 = 180
- x = 180 - 45
- x = 135