Example: The 3,4,5 Triangle The "3,4,5 Triangle" has a right angle in it. (Draw one if you ever need a right angle!) It has no equal sides so it is a scalene right-angled triangleAnd, like all triangles, the three angles always add up to 180°....
Example: find the height of the plane. We know the distance to the plane is 1000 And the angle is 60° What is the plane's height? Careful! The 60° angle is at the top, so the "h" side is Adjacent to the angle! Step 1 The two sides we are using are Adjacent (h) and ...
:a triangle having a right angle More from Merriam-Webster onright triangle Britannica.com:Encyclopedia article aboutright triangle Last Updated: 6 May 2025 - Updated example sentences Love words? Need even more definitions? Subscribe to America's largest dictionary and get thousands more definitions...
right-angled triangle Triangle in which one of the angles is a right angle (90). It is the basic form of triangle for defining trigonometrical ratios (for example,sine, cosine, and tangent ) and for which Pythagoras theorem holds true. Its are a is equal to half the product of the len...
ThePythagoras theoremstates that in a right-angled triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the other two sides. For example, if 'a' and 'b' are the sides that form the 90° angle and 'c' is the hypotenuse then the Pythagoras theor...
Right angle drafting triangleAckermann Jr Hermann F
The meaning of RIGHT ANGLE is the angle bounded by two lines perpendicular to each other : an angle of 90° or 1/2 π radians. How to use right angle in a sentence.
Right Triangle Formulas A triangle is a closed figure or shape with 3 sides, 3 angles, and 3 vertices, and for right triangle formulas, the properties have to be more specific. If any one of the angles of a triangle is a right angle (measuring 90º), the triangle is called a right...
(North American English usually right triangle) a flat shape with three straight sides and one right angleTopics Colours and Shapesc2 Take your English to the next level The Oxford Learner’s Thesaurus explains the difference between groups of similar words. Try it for free as part of ...
We can find anunknown anglein aright-angled triangle, as long as we know the lengths oftwo of its sides. Example The ladder leans against a wall as shown. What is theanglebetween the ladder and the wall? The answer is to useSine, Cosine or Tangent!