# Develop and use the formulas to find the areas of rectangles and squares: Area of a rectangle = lb where l is the length and b is the breadth (or width) of the rectangle Area of square = s squared where s is the side length of the square

 1 Paving the way: Measurement multiplication 2 Trinagular numbers: Investigate triangle ratios 3 Trinagular numbers: Investigate triangle ratios 4 The Plot Thickens - Plot points on a grid. Calculate area. 5 The Plot Thickens - Plot points on a grid. Calculate area. 6 Un-Tangling The Area - expression for calculating area of a rectangle 7 Face Value - calculate areas of faces, rectangular prism, total surface area 8 Face Value - calculate areas of faces, rectangular prism, total surface area 9 Face Value - calculate areas of faces, rectangular prism, total surface area 10 Face Value - calculate areas of faces, rectangular prism, total surface area 11 Doing Things By Halves - calculate area of rectangle in square cm, calculate half 12 Doing Things By Halves - calculate area of rectangle in square mm, calculate half 13 Doing Things By Halves - calculate area of rectangle in square m, calculate half 14 Doing Things By Halves - calculate area of rectangle in square cm, calculate half 15 Rec-tangles - calculate side length in km using area in square km 16 Rec-tangles - calculate side length in cm using area in square m, 2 decimal places 17 Rec-tangles - area of rectangle in square m, lengths in mm and m 18 Rec-tangles - area of rectangle in square km, lengths in m and km 19 Tricky Triangles - complete expressions for area of rectangle and triangle 20 You Go Figure - calculate missing side length in m, area in square m 21 You Go Figure - calculate missing side length in m, area in square m 22 You Go Figure - calculate missing side length in mm, area in square mm 23 Tricky Triangles - area of rectangle, calculate half to find area of triangle 24 Tricky Triangles - area of rectangle, calculate half to find area of triangle 25 Tricky Triangles - area of rectangle, calculate half to find area of triangle 26 Reasoning With Rectangles - find rectangle/square, area in square cm 27 Reasoning with Rectangles - calcualte area in square km 28 Tricky Terminology - identify shape, calculate area, square cm 29 Stepping Out The Bounds! - area of rectangles with the same perimeters 30 The Perimeter Holds! - area of rectangles with the same perimeter 31 Shape Up - select shapes with same area, quadrilaterals and triangles 32 Triangularea - area of triangle within rectangle 33 Triangularea - find perpendicular height given 1 side and area of triangle 34 Triangularea - area of a triangle 35 Triangularea - area of a triangle 36 Heron's Formula - area of triangle using Heron's formula 37 Heron's Formula - area of triangle using Heron's formula 38 Bovine Delinquent Disease - calculate missing side length of rectangle given area, m and hectares 39 Wrecked Angles 1 - calculate width of rectangle given area and length 40 Fair and Square 1 - calculate area of square given perimeter 41 Around The Square - calculate perimeter of square given area 42 The Secret Formula 3 - calculate rectangle side length given one side 43 The Secret Formula 2 - calculate rectangle side length given one side 44 The Secret Formula 1 - calculate rectangle side length given one side and area 45 Wrecked Angles 2 - calculate width given area and length 46 Round and Round the Garden... 2 - perimeter problem using area 47 Uncovering the Plot - move objects to given coordinates, area of t riangle 48 Size Matters - move objects to given coordinates, calculate area of triangle formed