122-123
What is the Pythagorean theorem?
What is a2+b2=c2.
what is a dilation
changing the size without changing the shape.
sin=
opposite/hypotenuse
What do all angles of a triangle add up to?
180
If two of the angles in a triangle are 62'. what is the third angle?
56'
cosin=
adjacent/hypotenuse
The square root of 18?
3 root 2
Circles are always similar because?
Circles can always be mapped onto each other.
tan=
opposite/adjacent
The square root of 20x8
2x4 root 5
If all sides are equal, what property is that?
SSS
30-60-90 triangles are equal to what three side lengths?
1,2,root3
The square root 2a * root 14a3 * root 5a?
2a2 root 35a
Congruent triangles are exactly the same. but similar triangles are?
proportional.
45-45-90 triangles are equal to what three side lenths?
1,1, root2