Two angles are congruent if their measure have a sum of 90 degrees *

If two angles have a sum of 90 degrees, then they are complementary. If two angles are complementary, then they add up to 90 degrees. (If two angles have the same measure, then they are congruent angles. If two angles are complementary to the same angle or to congruent angles, then the two angles are congruent.

Yes, if two angles are each complementary( two angles are complementary if the sum of their measures is 90) to a third angle, then they're congruent to each other.

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3