triangles Flashcards
1
Q
equilateral
A
all sides and angles are the equal; all angles are 60
2
Q
isosceles
A
2 sides and angles are equal
3
Q
2 kinds of special right triangles
A
3:4:5 and 5:12:13 including multiples of each
4
Q
right angles
A
have 90 angle which is directly across from the hypotenuse
able to use the pythagorean theorum
5
Q
45:45:90
A
isosceles right triangle
side lengths are 1:1:sqrt2
formed when a square is divided in half diagonally
6
Q
30:60:90
A
side lengths are 1:sqrt3:2
formed when an equilateral triangle is divided in half