If two congruent angles form a linear pair, then

a.
one angle is acute and the other angle is obtuse

b.
they are both right angles

c.
they are both acute angles

d.
they are both obtuse angles

A, b, c, and d have the coordinates (-8, 1), (-2, 4), (-3, -1), and (-6, 5), respectively. which sentence about the points is true? a. a, b, c, and d lie on the same line. b. and are perpendicular lines. c. and are parallel lines. d. and are intersecting lines but are not perpendicular. e. and are parallel lines.

What are two numbers that add up to -9 and multiply to -10 best answer gets branliest and 100 extra points

Find the measure of the angle indicated in bold