What is criterion in geometry?
A requirement necessary for a given statement or theorem to hold.
What is angle angle criterion?
Angle-angle criterion for similar triangles, also known as the AA Criterion for similarity, are when two triangles with two pairs of equal corresponding angles are similar.
What are two ways to name a ray?
Rays are commonly named in two ways:
- By two points. In the figure at the top of the page, the ray would be called AB because starts at point A and passes through B on its way to infinity.
- By a single letter. The ray above would be called simply “q”.
What is criteria of triangle?
Two triangles are congruent if they satisfy the 5 conditions of congruence. They are side-side-side (SSS), side-angle-side (SAS), angle-side-angle (ASA), angle-angle-side (AAS) and right angle-hypotenuse-side (RHS).
What is similarity criterion?
The SSS similarity criterion says that two triangles are similar if their three corresponding side lengths are in the same ratio. That is, if one triangle has side lengths a, b, c, and the other has side lengths A, B, C, then the triangles are similar if A/a=B/b=C/c.
What is the ray formula?
Also, the ray reflected along with the incident ray and the normal to the reflecting surface all lie on the same plane defined at the incident point and it shows θi=θr. …
What is the ASA criterion?
The ASA criterion for triangle congruence states that if two triangles have two pairs of congruent angles and the common side of the angles in one triangle is congruent to the corresponding side in the other triangle, then the triangles are congruent.
How do you write a ray in geometry?
A ray is named using its endpoint first, and then any other point on the ray (for example, →BA ).
How do you draw a ray in geometry?
To draw a ray, you draw a point and then draw a straight line coming out of it in one direction. At the end of the line, you add an arrow point to show it goes on forever.
What is SSS rule?
The SSS rule states that, if three sides of one triangle are equal to three sides of another triangle, then the triangles are congruent.