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Maths - Coggle Diagram
Maths
Angles
Straight line- 180 degrees
Triangle- 180 degrees
Full circle- 360 degrees
Square- 360 degrees
Right angle- 90 degrees
Acute- More than 0 degrees less than 90 degrees
Obtuse- Larger than 90 degrees less than 180 degrees
Reflex angle- More than 180 degrees less than 360 degrees
Fractions/ Decimals/ Percentages
100%=1=1/1
50%=0.5=1/2
25%=0.25=1/4
20%=0.2=1/5
10%=0.1=1/10
5%=0.05=1/20
Triangles
Scalene- All sides aren't equal
Isosceles- Two sides are equal
Equilateral- All sides are equal
180 degrees in a triangle
Triangles have 3 sides
Circumference/Area
To find the circumference of a circle-Radius x Pi squared
To find circumference of a circle- Diameter x Pi
To find the area of a circle-Radius x Pi squared
To find the area of a circle- Diameter x Pi squared
Algebra
The substitution of numbers for letters
When something is written X7 and X is 4 it means you would have to times it by 4.
You will not have to write the times symbol as the letter already shows that.
Ratios
Ratios show something compared to something else
E.g there are 4 red apples and 6 green apples this would be shown as 4:6
Ratios can be simplified like fractions
Parallel lines
Alternate-Angles that occur on opposite sides of the transversal line and have the same size.
Co-interior-Occur in between two parallel lines when they are intersected by a transversal.
Corresponding-The angles which occupy the same relative position at each intersection where a straight line crosses two others.