1. Area and Perimeter 3D Shapes
Week 6 Maths
Area and Perimeter
3D Shapes

2. Try solving these anagrams – they are all related to Area and Perimeter
THELNG
DITHW
RIPMETREE
AEAR
RELATING

3. Try solving these anagrams – they are all related to Area and Perimeter
THELNG = LENGTH
DITHW = WIDTH
RIPMETREE = PERIMETER
AEAR = AREA
RELATING = TRIANGLE

4. Session Aims Define Area and Perimeter
Calculate Area and Perimeter in a range of 2D shapes
Including triangles
Understand how to find the Area and Perimeter of compound shapes
Test prior knowledge of 3D shapes by:
Answering quiz questions
Identifying edges, corners, and faces
Drawing nets of 3D shapes

5. What is Perimeter?
What is Area?

6. What is Perimeter?
It is the distance around a 2D shape
What is Area?

7. What is Perimeter? What is Area? It is the distance around a 2D shape
It is the amount of space inside a 2D shape

8. Calculating Perimeter

9. Calculating Perimeter
Just add all of the sides together: = 20m

10. Calculating Area 7m 3m 3m 7m

11. Calculating Area 7m 3m 3m 7m
Multiply Length by Width: 7 x 3 = 21m²

12. Compound Shapes
Compound shapes are really just different rectangles joined together. Just find the area of each part and then add them together.