maths

Sum of interior angles

180 degrees

Pythagoras theorem

A square+ b square= c square

Supplementary

180

What are corresponding angles

Equal on parallel lines

Sum of interior angles of a quadrilateral

360 degrees

Cointerior

Volume of prism

Base area x height

Co interoir

180

What is a supplementary angle

Two angles add up to 180

What is the difference between congruent and similar shapes?

Congruent shapes are the same size and shape; similar shapes have the same shape but different sizes.

How do you find the midpoint of a line segment?

Midpoint = (x1+x2/2, y1+y2/2

What is the formula for the area of a trapezium?

½ (a +b) x h ( a and b are parallel sides)

Complementary

Supplementary

= 180

Revolution

360

Vertically opposite

Equal

Alternate angles

Equal

Corresponding angles

Equal

Co interior angles

Supplementary a+b=180

Equilateral

All 3 sides are equal all angles are 60 degrees

Isosceles

2 sides and angles are equal

Scalene

No sides equal, all angles different.

Acute

All angles less than 90 degrees

Right angle

One 90 degree angle

Obtuse

One angle greater than 90 degrees

Sum of interior angle

180 degrees

Exterior angle

Sum of two opposite interior angles

Quadrilateral

4 sides 4 angles

Quadrilateral interior angles

Add up to 360 degrees

What does the discriminant tell us?

• > 0 → 2 real solutions

• = 0 → 1 real solution

• < 0 → No real solution

Discriminant

B square -4ac

How are quadratics used in real life problems?

They can model area, height vs time, projectiles, profit, etc.
Usually involves finding maximum or minimum values (the vertex).

Adjacent

two angles that share a common vertex and a common side, but do not overlap

Parallelograms

Two pairs of parallel sides

Rectangle

Parallelograms with all angles of 90 degrees

rhombuses

Parallelograms with sides of equal length

Pentagon sides

Hexagon sides

6

Octagon sides

8

Nonagon sides

9

Decagon sides

10

Square

Squares that are both rectangles and rhombuses

Kites

Two pairs of equal adjacent sides

Trapeziums

Quadrilateral with at least one pair of parallel sides