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Physics
Mathematics
Triangles
All Subcategories (655)
Finding Side Lengths and Angles
Right triangle or Isosceles triangle
30-60-90 right triangles
30-60-90 triangle
30-60-90 triangle properties
30°- 60°- 90° triangles
45°-45°-90° triangles
Acute angle triangles
Acute isosceles triangle
Acute scalene
Acute triangle
Acute Triangles
Altitude
Altitude and area
Altitude and Base
Altitude and Hypotenuse Length
Altitude calculations
Altitude Line
Altitudes
Altitudes and Angles
Altitudes and Measures
Altitudes and Orthocenter
Altitudes and Parallel Lines
Altitudes and Side Lengths
Altitudes of triangles
Ambiguous triangles
Angle and Side lengths
Angle and Side Relationships
Angle and slope relationships
Angle Bisector
Angle bisector and segment lengths
Angle Bisector Theorem
Angle Bisectors
Angle bisectors and areas
Angle bisectors and cyclic quadrilaterals
Angle Calculation
Angle calculations
Angle classification
Angle Comparison
Angle Congruence
Angle measurement
Angle measurement and length calculation
Angle measurement and solving for unknown variables
Angle measurement or Angle properties
Angle Measurement or Triangle Solving
Angle Measurement/Equations
Angle measurements
Angle measurements and comparisons
Angle measurements and lengths
Angle measurements and proofs
Angle Measurements and Properties
Angle measurements and relationships
Angle measurements and side length calculations.
Angle measurements and side lengths
Angle measurements and side lengths of triangles
Angle measurements and solving equations
Angle Measurements and Solving for x
Angle measurements and the Triangle Angle Sum Theorem
Angle measurements and trigonometric functions
Angle measurements or Triangle properties
Angle measures
Angle Measures and Division of Triangles
Angle Measures and Equations
Angle measures and side lengths
Angle measures and solving for x
Angle measures and triangle types
Angle measures and types
Angle measures in triangles
Angle measures of triangles
Angle of Elevation
Angle of elevation and height.
Angle of Elevation or Depression
Angle order
Angle properties
Angle properties and side lengths
Angle properties and similarity
Angle properties of triangles
Angle properties or Length properties
Angle Properties/Constructions
Angle Relations
Angle relationships
Angle relationships and measures
Angle Similarity
Angle Sum of Triangles
Angle Sum Theorem
Angle trisection and side length relationships
Angles
Angles and Bisectors
Angles and Elevation
Angles and Equations
Angles and measurements
Angles and Ratios
Angles and Side lengths
Angles and their classifications
Area
Area and Angle Measurements
Area and Base Calculation
Area and Base Length
Area and Dimensions
Area and Height
Area and height of a triangle
Area and measurements
Area and Perimeter
Area and Ratios
Area and Rotation
Area and Side Length Relationships
Area and Side Lengths
Area Calculation
Area calculations
Area Comparison
Area Formula
Area of a non-right triangle
Area of a right triangle
Area of a right-angle triangle
Area of a Triangle
Area of a Triangle and its Formulas
Area of a Triangle Formula
Area of an Equilateral Triangle
Area of non-right triangle
Area of Non-right Triangles
Area of Triangle
Area of triangles
Area of triangles and segments
Area of Triangular Base
Area ratio
Area Ratios
Base and Height
Base and Height Relationships
Base calculations
Base length calculations
Base of a Triangle
Bermuda Triangle
Bisector theorem
Calculating angles
Calculating Coordinate vertices
Calculating side lengths
Centers
Centers of Triangles
Centroid
Centroid and Medians
Centroid and Segment Lengths
Centroid properties
Centroids
Centroids and Medians
Centroids and Midpoints
Circle inscribed in a triangle
Circles
Circumcenter
Circumcenter properties
Circumcircle
Circumscribed circle
Circumscribed Circles
Circumscribed triangle properties
Circumscribed triangles
Classification
Classification and Application
Classification and Measurement
Classification by angle measures
Classification by Side and Angle
Classification by sides
Classification by sides and angles
Classification of Triangles
Classification of Triangles by Angles
Classification of Triangles by Sides
Classification or Properties of Triangles
Classification types
Classification/Comparison
Classifications of triangles
Classifying by angles
Classifying Triangles
Concurrency of Lines
Concurrency of lines in triangles
Concurrency Points
Conditions for Triangle Creation
Cone
Congruence
Congruence and Similarity
Congruence and Transformations
Congruence by AAS
Congruence criteria, specifically HL theorem
Congruence of angles and triangles
Congruence proofs
Congruence statements
Congruence Theorems
Congruence transformations
Congruency
Congruent
Congruent and Equilateral Triangles
Congruent and Similar Triangles
Congruent angles
Congruent Angles and Side Lengths
Congruent Corresponding Angles
Congruent Segments
Congruent sides
Congruent Triangles
Congruent Triangles and Side Lengths
Construction
Construction of Triangles
Coordinate Geometry
Coordinate Grid
Coordinate Plane
Coordinate Plane Triangles
Coordinates and Dilations
Corresponding Angles
Corresponding sides
Corresponding Sides and Angles
Cosine Rule
Covering Area
Decomposition of shapes
Diagonals
Dilation
Dilation and Scale Factor
Dilations
Dilations and Scale Factors
Distance between points
Distance Calculation
Distance Calculations
Distances
Enlargement
Equations and Algebra
Equations and Expressions
Equations and properties of triangles
Equations for triangle properties
Equations of Lines
Equidistant Points
Equilateral Triangle
Equilateral Triangle and Right Triangle
Equilateral triangle or Perimeter calculation
Equilateral triangle properties
Equilateral triangles
Equilateral triangles and their properties
Equilateral triangles, Similar triangles
Error triangle and estimation
Exterior angles
Exterior angles and unknown values
Finding angles in triangles
Finding Areas of Triangles
Finding height of a triangle
Finding missing measures
Finding Missing Side Lengths
Finding missing sides
Finding side lengths
Finding the length of a side
Finding the length of a triangle side
Finding the length of the third side of a triangle
Geometry formulas/Calculating areas of polygons
Height
Height and Base of a Triangle
Height of a Triangle
Incenter
Incenter and Parallel Lines
Inradius
Inscribe a square in a triangle
Inscribed rectangle
Inscribed Triangle
Inscribed Triangles
Inscribed triangles in circles
Interior and Exterior Angles
Interior angles
Intersection of Perpendicular Dissectors
Isoceles triangles
Isosceles
Isosceles and Equilateral Triangle Properties
Isosceles and Equilateral Triangles
Isosceles Obtuse Triangle
Isosceles Obtuse Triangle, Scalene Right Triangle
Isosceles right triangle
Isosceles Right Triangles
Isosceles triangle
Isosceles triangle angles
Isosceles Triangle Construction
Isosceles Triangle Measurement
Isosceles triangle properties
Isosceles triangle properties and angles
Isosceles triangle properties and problems
Isosceles triangle properties/Perimeter and side lengths
Isosceles triangles
Isosceles triangles and midpoints
Isosceles triangles and their patterns
Isosceles triangles and trapezoids
Isosceles triangles in circles
Isosceles triangles inscribed in a circle
Isosceles triangles with a vertex angle
Isosceles triangles/Angle measures
Lateral Surface Area
Length of sides
Length of Triangle Sides
Lengths and Angles
Lengths and Midpoints
Lengths of Triangle Sides
Line division
Lines
Lines in Triangles
Locus of Points
Measurement and Computation
Measurements
Measurements and Area
Measurements and Properties
Median
Median and Equations of Lines
Median and Midpoint
Median and Slope Intercept Form
Medians
Medians and Bisectors
Medians and Centroids
Medians and Midpoints
Medians and the Centroid
Midpoint and Coordinate Geometry
Midpoint and Intersection Point
Midpoint and line segment properties
Midpoint and Median
Midpoint and parallel lines
Midpoints
Midpoints and angle measurements
Midpoints and angles
Midpoints and areas of triangles
Midpoints and Collinearity
Midpoints and Intersections
Midpoints and Lengths
Midpoints and Medians
Midpoints and Midsegments
Midpoints and Parallel Lines
Midpoints and perpendicular lines
Midpoints and Perpendiculars
Midpoints and segment lengths
Midpoints and segments
Midpoints and Side Lengths
Midpoints of Triangle Sides
Midsegment
Midsegment of a Triangle
Midsegments
Missing side length
Missing Side Lengths
Missing sides
Naming triangles
Naming vertices
Non-right triangles
Non-triangles
Non-triangular side lengths
None (This text does not require a sub-category)
Not a triangle
Oblique triangles
Obtuse Triangle
Obtuse Triangles
Optimization
Orientation
Orthocenter
Orthocentre
Parallel Lines
Parallel Lines and Midpoints
Parallel Lines in Triangles
Perimeter
Perimeter and Area
Perimeter and Area Comparison
Perimeter and Congruency
Perimeter and equations
Perimeter and fencing
Perimeter and Lengths
Perimeter and Lengths of Sides
Perimeter and missing length
Perimeter and Side Length Calculation
Perimeter and Side Lengths
Perimeter Calculation
Perimeter calculations
Perimeter Formulas
Perimeter of a triangle
Perimeter of Triangles
Perpendicular Bisector
Perpendicular bisectors
Perpendicular bisectors and similarity
Perpendicular lines and area division
Perpendicularity and Altitudes
Perpendiculars in Triangles
Points of concurrency
Possible configurations
Properties
Properties and Analyzing
Properties and Classification of Triangles
Properties and Formulas
Properties and Proofs
Properties and Relationships of Triangle Sides and Angles
Properties of isosceles triangles
Properties of right triangles
Properties of Similar Triangles
Properties of Triangles
Proportional Relationships
Proportional sides
Proportional sides and parallel lines
Proportional triangles
Proportions
Proportions and Similarity
Proving congruence
Proving perpendicularity
Pyramids and Prisms
Pythagorean Theorem
Pythagorean theorem or Trigonometry
Pythagorean Triples
Rate of Change
Rates of Change
Rates of Change or Rates of Increase/Decrease
Ratio and Area
Ratio and Proportion
Ratio and Proportions
Ratio of triangle area to square area
Ratios
Ratios and Proportions
Ratios of triangles
Ray intersections
Rectangular lot calculations
Reflection
Reflections
Relationship between base and height
Relationships
Right angle triangle
Right Angle Triangles
Right angles
Right angles and circles
Right Isosceles Triangle
Right Triangle
Right Triangle Angle Measures
Right triangle classification
Right triangle perimeter calculation
Right triangle properties
Right triangles
Right triangles (45°- 45°- 90°)
Right Triangles and Isosceles Triangles
Right triangles and Pythagorean theorem
Right triangles and similar triangles
Right triangles and trigonometry
Right triangles lengths
Right triangles or Trigonometry
Right triangles, Angles
Right triangles/Pythagorean theorem
Right-angled isosceles triangle
Right-Angled Triangle
Right-angled triangle formulas
Right-angled triangles
Rotation
Rotations
Scale drawing
Scale Drawings
Scale Factor
Scale Factor and Ratios
Scale factor/dilation
Scale Factors
Scalene triangle with specific side lengths and perimeter
Scalene triangles
Segment Lengths
segment lengths and variables
Segment types
Segments
Side Congruence and Length
Side length calculations
Side length ratios
Side lengths
Side lengths and angles
Side lengths and inequalities
Side Lengths and Perimeter
Side lengths and relationships
Side lengths or Triangle Inequality
Side measures
Side Ordering
Side-length comparisons
Sides and Angles
Sides and angles in triangles
Sides and Legs
Sides of a Triangle
Similar
Similar Triangles
Similar triangles and parallel lines
Similar triangles and proportional relationships
Similar triangles and rectangles
Similarity
Similarity and Congruence
Similarity and Corresponding Parts
Similarity and Proportion
Similarity and Proportions
Similarity and Ratios
Similarity Criteria
Similarity of Triangles
Similarity Statements
Slope
Slope equality explanation
Solving equations
Solving for height
Solving for missing parts
Solving for missing sides or angles
Solving for unknown angles and sides
Solving for unknown side lengths
Solving Triangles
Solving triangles and measuring angles
Special Lines of Triangles
Special Right Triangles
Special segments
Special Triangle Properties
Special triangles
Special triangles/Equilateral triangles
Special Triangles/Pythagorean Theorem
Special types of triangles
Specific Properties of Triangles
Surface Area
Tangent Circles
Tangent of Incircle
Third Side Measurement
Transformations
Translations
Triangle Angle Bisector Theorem
Triangle Angle Measurements
Triangle Angle Measures
Triangle Angle Relationships and Side Lengths
Triangle Angle Sum Theorem
Triangle angles
Triangle angles and bearings
Triangle Area
Triangle Area and Height
Triangle Area Proportions
Triangle Attributes
Triangle Bisector Theorem
Triangle calculations
Triangle Centers
Triangle Classification
Triangle classification and side lengths
Triangle classification by side length and angle measurement
Triangle classification or Triangle properties
Triangle Classifications
Triangle Comparison
Triangle Congruence
Triangle Congruence and Corresponding Angles
Triangle Congruence and Properties
Triangle congruence and similarity
Triangle Congruence or Distance Formula
Triangle Construction
Triangle construction and measurement
Triangle Construction and Measurements
Triangle Constructions or Triangle Measurements
Triangle coordinates and positions
Triangle creation
Triangle DEF
Triangle Descriptions
Triangle determination
Triangle Diagram
Triangle Dimensions
Triangle formation
Triangle Formulas
Triangle formulas or Area of a triangle
Triangle height or Altitude
Triangle Inequalities
Triangle Inequality
Triangle Inequality and Angle Measures
Triangle Inequality and Angle Sum Properties
Triangle Inequality Theorem
Triangle Intersections
Triangle legs
Triangle lengths
Triangle Measurement
Triangle Measurement and Calculation
Triangle Measurement and Properties
Triangle measurement and solving
Triangle measurements
Triangle measurements and angles
Triangle Measurements and Calculations
Triangle Measurements and Properties
Triangle Measurements or Triangle Angles
Triangle Measurements or Triangle Properties
Triangle Measures
Triangle Patterns
Triangle Perimeter
Triangle perimeter and fence construction
Triangle Perimeter and Side Lengths
Triangle Perimeters
Triangle Perimeters and Areas
Triangle PQR
Triangle Proofs
Triangle Properties
Triangle properties (sides and angles)
Triangle properties and calculations
Triangle Properties and Centres
Triangle properties and measurements
Triangle properties and perimeter
Triangle Properties and Types
Triangle Properties or Inequalities
Triangle properties or Measurement calculations
Triangle properties or Triangle angles
Triangle properties or Triangle calculations
Triangle Properties or Triangle Centers
Triangle properties or Triangle classification
Triangle properties or Triangle congruence
Triangle properties or Triangle congruence theorems
Triangle properties or Triangle lengths
Triangle Properties or Triangle Perimeter
Triangle Properties or Triangle Ratios
Triangle Properties or Triangle Relationships
Triangle properties/calculation
Triangle Properties/Calculations
Triangle Properties/Characteristics
Triangle Properties/Constructions
Triangle properties/Perimeter calculation
Triangle properties/relationships
Triangle Proportions
Triangle Relationships
Triangle segments
Triangle side length
Triangle Side Lengths
Triangle Side Lengths and Angles
Triangle side measurements
Triangle sides
Triangle sides and perimeter
Triangle sides length
Triangle Sides Lengths
Triangle Similarity
Triangle Similarity and Congruence
Triangle Similarity and Proportionality
Triangle Similarity and Proportions
Triangle Solving
Triangle Theorems
Triangle transformations
Triangle Trigonometry
Triangle types
Triangle types/properties
Triangle vertices
Triangle XYZ
Triangle XYZ Measurements and Calculations
Triangles created by segments within a square
Triangles created with specific line segment and radius
Triangles with given side lengths
Triangles with Specific Angle Measures
Triangular plots and fences
Triangular Prism and Triangular Pyramid
Triangular properties
Triangular sails
Triangular shelters
Trigonometric Ratios
Trigonometry
Trigonometry and Measurements
Type of triangles
Types of angles in triangles
Types of triangles
Types of Triangles or Triangle Relationships
Unique Triangles
Unknown Angle (Value of x)
Unknown angle or side lengths of a triangle
Unknown side length
Unknown side length (using side lengths and angle measures)
Unknown side lengths
Unknown sides
Unknown sides and their relationships
Unknown/Problem-solving
Unknowns and equations
Vertex coordinates
Vertex identification
Volume calculations
Volume of Prism and Pyramid
Parent Categories (54)
2D Geometry
2D Shapes
Angles
Angles and Polygons
Area
Area and Perimeter
Area of Shapes
Areas of Shapes
Basic Shapes
Composite Figures
Congruent Figures
Coordinate Geometry
Coordinate Plane
Coordinate Plane Geometry
Distance
Euclidean Geometry
Figures
Geometric Figures
Geometric Shapes
Geometric shapes and measurements
Geometrical shapes
Geometry
Geometry and Measurements
Geometry/Mathematics
Geometry/Trigonometry
Landforms
Lines and Angles
Math
Math and Geometry
Mathematics
Measurements
Measurements and Geometry
Measurements and Proportions
Perimeter and Area
Plane figures
Plane Geometry
Plane Shapes
Polygons
Probability
Pythagorean Theorem
Quadrilaterals
Shape
Shapes
Shapes and Angles
Shapes and Dimensions
Shapes and Figures
Shapes and Formulas
Shapes and measurements
Similarity
Similarity and Congruence
Similarity of Figures
Similarity of shapes
Trigonometry
Two-dimensional shapes