1. Material Taken From: Mathematics for the international student Mathematical Studies SL Mal Coad, Glen Whiffen, John Owen, Robert Haese, Sandra Haese and Mark Bruce Haese and Haese Publications, 2004

2. Objectives To find the area of a closed figure
To find the surface area of a 3D

3. Chapter 11 – Section C – Area
- Area formulae found on page 365 -
Find the area of: 3) 4)

4. Find the area of: 5) 6)

5. Find the area of: 7) 8)

6. Find the area of: 9)
10)

7. 11) A 15m by 8m rectangular garden consists of a lawn with an inner rectangle (7m × 4m) of flowers. Find the area of the lawn.

8. Chapter 11 – Section D – Word Problems
1) A triangular advertising sign has base 1.6 m and area 2 m2. Find its height.

9. the number of boxes of seed required the total cost of the seed.
2) A rectangular lawn is 12 m by 8 m and a 3.2 m square garden bed is dug out of the lawn. The lawn is then reseeded with boxes of seed, where each box costs $8.50 and covers 18 m2. Find:
the area of the lawn
the number of boxes of seed required
the total cost of the seed.

10. Solids with Plane Faces
Chapter 11 – Section E – Surface Area
Solids with Plane Faces
Surface area of a solid with plane faces is the sum of the areas of the faces.

11. 1) Find the surface area of the rectangular prism:

12. Objects with curved surfaces
Cylinder
Cone
Sphere

13. 3) Find, the surface area of:

14. 4) Find the outer surface area of:

15. 5) The length of a hollow pipe is three times its radius
5) The length of a hollow pipe is three times its radius. If its surface area is m2, find its radius.

16. Homework 11C.2, pg 366 #1c, 2a, 4b, 6c 11C.3 pg 368 #1b 11C.4, pg 369
#1bc, 3ac
11D, pg 370
#2b, 5, 7
11E. 1, pg 375
#1b, 2, 4
11E.2, pg 376
#1cdf, 6