right angles 1
The measure of a right angle
90 degrees
the kind of angle that perpendicular lines create
right angle
A triangle with 1 right angle
the 2 sides of a right triangle that are NOT the hypotenuse
the legs
These kinds of lines intersect to form right angles
Perpendicular lines
2 angles that add up to create a right triangle are...
complementary
the longest side of a right triangle; the side opposite the right angle
the hypotenuse
the postulate that is used to prove right triangles congruent
HL postulate (hypotenuse leg)
a perpendicular line from the vertex of a triangle to the line containing the opposite side that forms a right angle
an altitude
if 2 angles are right angles, then they are...
congruent to each other