Chapter 9- The Pythagorean Theorem Flashcards
1
Q
hypotenuse
A
side of a triangle opposite the right angle
2
Q
legs
A
sides of a right triangle that form the right angle
3
Q
converse of the pythagorean theorem
A
if the lengths of the three side of a triangle satisfy the pythagorean equation, then the triangle is a right triangle
4
Q
45-45-90 triangles
A
the leg length is the number of square roots of 2 of the hypotenuse
5
Q
30-60-90 triangles
A
if the shorter leg has length a, then the longer leg has length a-root three and the hypotenuse has length 2a
6
Q
tangent conjecture
A
a tangent to a circle is perpendicular to the radius drawn to the point of tangency
7
Q
angles inscribed in a semicircle conjecture
A
angles inscribed in a semicircle are right angles
