FORMULAS TO REMEMBER

Question 1

What is the formuala for the area of a trapezium?

Answer 1

𝐴=(𝑎+𝑏)/2 ℎ

Question 2

What is the cross section of a prism?

Answer 2

A cross section is the shape that you get by cutting across any section of a prism

Question 3

What is the formula for the volume of a prism?

Answer 3

length x width x height

Question 4

How do you correctly label a right angled triangle A/O/H

Answer 4

H- Hypotenuse- Longest side
A- Adjacent - Adjacent to the angle
O- Opposite - Opposite the angle

Question 5

If you have a right angled triangle, what do you use to work out the missing sides or angles?

Answer 5

Pythagoras’ theorem

𝑎^2+𝑏^2=𝑐^2

Question 6

If you are using the adjacent and hypotenuse, which trigonometric ratio do you use?

Answer 6

Cosine rule

Question 7

If you are using the opposite and hypotenuse, which trigonometric ratio do you use?

Answer 7

Sine rule

Question 8

If you are using the opposite and adjacent, which trigonometric ratio do you use?

Answer 8

Tangent