4.4.4
Congruent Triangles
Congruent Triangles
Congruent Triangles
Two shapes are congruent if they are the same shape and same size. They can be rotations or reflections of each other. There are four ways to prove two triangles are congruent:
SSS (side, side, side)
SSS (side, side, side)
- The three sides must be the same lengths.
SAS (side, angle, side)
SAS (side, angle, side)
- Two sides and the angle between them must be the same.
ASA (angle, side, angle)
ASA (angle, side, angle)
- Two angles and the side between them must be the same.
RHS (right angle, hypotenuse, side)
RHS (right angle, hypotenuse, side)
- There must be a right angle in both triangles and the hypotenuse and one other side must be the same lengths.
1Number
1.1Place Value
1.2Factors & Multiples
1.3Operations
1.3.1Addition
1.3.2Subtraction
1.3.3Multiplication 10,100...
1.3.4Grid Multiplication
1.3.5Division by 10s
1.3.6Powers
1.3.7Roots
1.3.8Surds
1.3.9Rationalise denominator
1.3.10Simplify Surds
1.3.11BIDMAS
1.3.12Inverse Ops
1.3.13Standard Form
1.3.14Addition in Standard Form
1.3.15Subtraction in Standard Form
1.3.16End of Topic Test - Standard Form
1.4Fractions, Decimals & Percentages
1.4.1Fractions
1.4.2Mixed & Improper Fractions
1.4.3Write 2 Numbers as Fractions
1.4.4Adding Fractions
1.4.5Subtracting Fractions
1.4.6Multiplying Fractions
1.4.7Dividing Fractions
1.4.8Finding Fractions
1.4.9Improper & Mixed Fractions
1.4.10Decimal Place Value
1.4.11Fraction to Decimal
1.4.12Find Percentage Unitary
1.4.13Fraction to Percentage
1.4.14Percentage to Fraction
1.4.15Percentage to Decimal
1.4.16Decimal to Percentage
1.4.17Percentage using Decimal
1.4.18End of Topic Test - Fractions
1.5Growth & Decay
1.6Measurements & Units
2Algebra
2.1Introduction to Algebra
2.2Graphs
2.3Solving Equations
2.3.1Solve Linear Equations
2.3.2Words To Equation
2.3.3Solve Linear Equations Graphically
2.3.4Solve Inequality
2.3.5Graphing Inequalities
2.3.6End of Topic Test - Graphs & Equations
2.3.7Simultaneous Equations
2.3.8Simultaneous Equations Graph
2.3.9Quadratic +/-
2.3.10Factorise Quadratics
2.3.11Complete the Square
3Ratio, Proportion & Rates of Change
3.1Manipulating Ratios
3.2Ratios in Practice
3.3Percentage & Finance
4Geometry & Measures
4.1Introduction to Geometry
4.2Ruler & Compass Constructions
4.3Perimeter & Area
4.4Triangles, Quadrilaterals & Circles
4.5Transformations
4.6Triangle Formulae
4.73D Shapes
4.7.1Types of 3D Shape
4.7.2Plans & Elevations
4.7.3Nets
4.7.4Volume of 3D Shapes
4.7.5Volume of a Cuboid
4.7.6Volume of a Cylinder
4.7.7Volume of a Sphere
4.7.8Volume of a Hemisphere
4.7.9Volume of a Cone
4.7.10Volume of a Pyramid
4.7.11Surface Area of a Cuboid
4.7.12Surface Area of a Cylinder
4.7.13Surface Area of a Sphere/Hemisphere
4.7.14Surface Area of a Cone
4.7.15Surface Area of Composite Shapes
4.7.16End of Topic Test - Triangles, Area, & 3D Shapes
4.8Vectors
5Probability
5.1Introduction to Probability
5.2Representing Probability
6Statistics
6.1Introduction to Statistics
Jump to other topics
1Number
1.1Place Value
1.2Factors & Multiples
1.3Operations
1.3.1Addition
1.3.2Subtraction
1.3.3Multiplication 10,100...
1.3.4Grid Multiplication
1.3.5Division by 10s
1.3.6Powers
1.3.7Roots
1.3.8Surds
1.3.9Rationalise denominator
1.3.10Simplify Surds
1.3.11BIDMAS
1.3.12Inverse Ops
1.3.13Standard Form
1.3.14Addition in Standard Form
1.3.15Subtraction in Standard Form
1.3.16End of Topic Test - Standard Form
1.4Fractions, Decimals & Percentages
1.4.1Fractions
1.4.2Mixed & Improper Fractions
1.4.3Write 2 Numbers as Fractions
1.4.4Adding Fractions
1.4.5Subtracting Fractions
1.4.6Multiplying Fractions
1.4.7Dividing Fractions
1.4.8Finding Fractions
1.4.9Improper & Mixed Fractions
1.4.10Decimal Place Value
1.4.11Fraction to Decimal
1.4.12Find Percentage Unitary
1.4.13Fraction to Percentage
1.4.14Percentage to Fraction
1.4.15Percentage to Decimal
1.4.16Decimal to Percentage
1.4.17Percentage using Decimal
1.4.18End of Topic Test - Fractions
1.5Growth & Decay
1.6Measurements & Units
2Algebra
2.1Introduction to Algebra
2.2Graphs
2.3Solving Equations
2.3.1Solve Linear Equations
2.3.2Words To Equation
2.3.3Solve Linear Equations Graphically
2.3.4Solve Inequality
2.3.5Graphing Inequalities
2.3.6End of Topic Test - Graphs & Equations
2.3.7Simultaneous Equations
2.3.8Simultaneous Equations Graph
2.3.9Quadratic +/-
2.3.10Factorise Quadratics
2.3.11Complete the Square
3Ratio, Proportion & Rates of Change
3.1Manipulating Ratios
3.2Ratios in Practice
3.3Percentage & Finance
4Geometry & Measures
4.1Introduction to Geometry
4.2Ruler & Compass Constructions
4.3Perimeter & Area
4.4Triangles, Quadrilaterals & Circles
4.5Transformations
4.6Triangle Formulae
4.73D Shapes
4.7.1Types of 3D Shape
4.7.2Plans & Elevations
4.7.3Nets
4.7.4Volume of 3D Shapes
4.7.5Volume of a Cuboid
4.7.6Volume of a Cylinder
4.7.7Volume of a Sphere
4.7.8Volume of a Hemisphere
4.7.9Volume of a Cone
4.7.10Volume of a Pyramid
4.7.11Surface Area of a Cuboid
4.7.12Surface Area of a Cylinder
4.7.13Surface Area of a Sphere/Hemisphere
4.7.14Surface Area of a Cone
4.7.15Surface Area of Composite Shapes
4.7.16End of Topic Test - Triangles, Area, & 3D Shapes
4.8Vectors
5Probability
5.1Introduction to Probability
5.2Representing Probability
6Statistics
6.1Introduction to Statistics
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