right triangle
Hypotenuse-having shape
A right triangle is a triangle containing one 90-degree angle.
The side opposite the right angle is called the hypotenuse—always the longest side.
The Pythagorean theorem describes the relationship between the sides: the square of the hypotenuse equals the sum of the squares of the other two sides.
Measure of perpendicularity
- perpendicularAt right angles
- vertexPoint where edges converge
- altitudeMeasured height above reference
- legsLocomotion appendages below torso
area · base · height · congruent · similar · median · orthocenter · diagonal
Opposite over hypotenuse
- cosineRatio in triangle math
- tangentLine touching curve once
- oppositeReverse or contrary thing
- adjacentDirectly next to
theta · cotangent · secant · cosecant · unit circle · radians · degrees · inverse
Demonstrated logical conclusion
- PythagorasAncient Greek mathematician
- proofDemonstration of truth
- legsLocomotion appendages below torso
- squaredRaised to second power
square root · Euclidean · proposition · converse · ratio · proportion · triples · Babylonian
90 degrees
Measure of perpendicularity
- perpendicularAt right angles
- vertexPoint where edges converge
- altitudeMeasured height above reference
legs · area · base · height · congruent · similar · median · orthocenter · diagonal
sine
Opposite over hypotenuse
adjacent · theta · cotangent · secant · cosecant · unit circle · radians · degrees · inverse · arctan
theorem
Demonstrated logical conclusion
- PythagorasAncient Greek mathematician
- proofDemonstration of truth
- legsLocomotion appendages below torso
squared · square root · Euclidean · proposition · converse · ratio · proportion · triples · Babylonian
scalene
All sides unequal
- standardizedMade uniform across cases
right, triangle, rectangle, triangular, right angle, trigonometry, hypotenuse, trigonometric, right-angled