What does a triangle next to a letter mean?

What does a triangle next to a letter mean?

Delta /ˈdɛltə/ (uppercase Δ, lowercase δ or 𝛿; Greek: δέλτα délta, [ˈðelta]) is the fourth letter of the Greek alphabet. A river delta (originally, the Nile River delta) is so named because its shape approximates the triangular uppercase letter delta.

How is a right triangle labeled?

A right triangle is a triangle with one right angle. The angles will be labeled according to the vertex at which they are located. The side opposite angle A will be labeled side a, the side opposite angle B will be labeled side b, and the side opposite angle C will be labeled side c.

Does Delta mean triangle?

alphabet
Named for the fourth letter of the Greek alphabet (shaped like a triangle), a delta is a triangular area where a major river divides into several smaller parts that usually flow into a larger body of water.

What is the notation for the right angle of a triangle?

The notation for the right angle in a right triangle (or any other right angle) is a little square in the corner. Little tick marks are used to show that two sides are the same length (congruent).

What does the Teal mean in a Venn diagram?

Intersection of two sets: ∩. In making a Venn diagram, we are often interested in the intersection of two sets—that is, what items are shared between categories. In this diagram, the teal area (where blue and green overlap) represents the intersection of A and B, or A ∩ B.

What are the rules for translation in geometry?

Rules for Translation 1 One notation looks like begin {align 2 }T_ { (3, 5)}end {align 3 }. This notation tells you to add 3 to the begin… 4 The second notation is a mapping rule of the form begin {align 5 } (x, y) rightarrow (x-7, y+5)end {align 6 }. This… More

Which is the best description of a translation?

A translation is a type of transformation that moves each point in a figure the same distance in the same direction. Translations are often referred to as slides. You can describe a translation using words like “moved up 3 and over 5 to the left” or with notation. There are two types of notation to know.