Right-angled triangle
Definition: A right-angled triangle is a type of triangle that has one angle measuring exactly 90 degrees. This angle is known as a "right angle."
Usage Instructions:
You can use the term "right-angled triangle" in mathematical contexts, particularly in geometry.
When discussing properties of triangles, you can mention right-angled triangles to explain concepts like the Pythagorean theorem.
Example:
"In a right-angled triangle, if one side is 3 units long and another side is 4 units long, the longest side, known as the hypotenuse, can be calculated using the Pythagorean theorem."
Advanced Usage:
In advanced mathematics, you might encounter the term "right-angled triangle" in discussions about trigonometric functions, such as sine, cosine, and tangent, which are often applied to the angles and sides of right-angled triangles.
Word Variants:
Different Meanings:
Synonyms:
Related Concepts:
Hypotenuse: The longest side of a right-angled triangle, opposite the right angle.
Adjacent side: The side next to the angle being considered (other than the hypotenuse).
Opposite side: The side opposite to the angle being considered.
Idioms and Phrasal Verbs:
While "right-angled triangle" does not have idioms or phrasal verbs directly associated with it, here are some related terms: - "Right on": An expression used to show agreement or approval. - "Get right to the point": To speak directly about the main issue without unnecessary details.
Summary:
A right-angled triangle is a triangle with one angle that is exactly 90 degrees.