Year 8 Term 2 Final Review

Friday February 27th Topic List Calculating Area, Perimeter and Volumes of Shapes Pythagoras’ Theorem Constructions Construct nets of solid shapes Identify symmetry Trigonometry – tangent, sine and cosine Coordinates in the four quadrants Rotation, reflection and translation Enlargements Scale drawings

Example Q1. A farmer has a rectangular field that measures 8.7km long and has a total area of 125km2 . What is the width of his field? Test taking strategy Answer

Compound Shape Example

Test taking Strategy (1 shape) Write down the information you are given Write down the appropriate formula Substitute and Solve

Test taking Strategy (Compound Shapes) Situation 1: Two or more compound shapes added together Situation 2: Find the shaded region by finding the area of one shape minus the other.

Area Perimeter and Volume You will not be given the formulae. At home make a table of the formulae we learned in class and use them enough to remember them.

Formulae to get your started

Volume To find the Volume of any Prism do the following. Find the area of the face of the prism and multiply by the length.

Surface Area of Cuboid

Example Question a) Draw the net of the cuboid b) What is the volume and Surface Area of this Cuboid?

Volume = 2x3x6 = 30cm3 Surface Area = 2(2x3) + 2(2x6) = 2(3x6) = 72cm2

Surface Area and Volume

Surface Area and Volume

Pythagoras and SOH CAH TOA Objectives: Pythagorus -finding an unknown hypotenuse -finding an unknown side SOH CAH TOA -finding unknown sides -finding an unknown angle

Agenda Review your notes and summarize pythagorus and SOH CAH TOA – 20 minutes I will go over the 4 possible situations with you using examples – 20 minutes Complete 2 exam-style questions – 10 minutes

Example 1 Find the unknown hypotenuse x 5m 12m

Example 2 Find the unknown side x 20m 25m

Example 3 Find Unknown 25m x 20m