Similarity
When 2 ratios/fractions are equal
What is a proportion?
When the side lengths and angle measures of two triangles are the same, they are...
What is congruent?
Corresponding angles are always...
What is congruent?
a^2 + b^2 = c^2
What is Pythagorean Theorem?
The longest side of a right triangle, opposite the right angle.
What is hypotenuse?
Two triangles are similar when two angles are equal in measurement. This criterion is called...
When two pairs of corresponding angles and the corresponding sides between them are equal, the criteria is called what?
What is side-angle-side?
Type of triangle that has 2 sides of equal length.
What is isosceles triangle?
A perpendicular bisector forms this kind of angle.
What is right angle?
Sin(30)
What is 0.5?
When the ratio of the corresponding sides of two triangles are equal, the triangles are...
What is similar?
Congruent triangles must have these of corresponding equal length.
What is side lengths?
Same-side interior angles are...
What is supplementary?
Name of triangle side that touches the reference angle
What is adjacent side?
Trigonometric function representing the length of the side opposite an angle over the adjacent side
What is tangent?
When three pairs of corresponding sides are proportional, this criterion for proving triangles similar is called...
What is side-side-side?
When the pair of hypotenuses and another pair of corresponding sides are equal in two right triangles, what is the criterion called?
What is Hypotenuse-Leg?
This theorem states that a ray splits the opposite side into segments that have the same ratio as the adjacent sides.
What is angle bisector theorem?
Perpendicular line segment from a vertex to the line determined by the opposite side.
What is altitude?
Cos(81)
What is 0.16?
When trying to find if the ratios between triangle side lengths is equal, you set up what?
What is a proportion?
2:4 is considered to be this.
What is a ratio?
These segments have the same _______ as the adjacent sides when split by an angle bisector.
What is ratio?
The altitude splits the large triangle into two _______ triangles.
What is similar?
Acronym that helps us remember different trigonometric ratios.
What is SOHCAHTOA?