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. If the beacons are 1473 meters apart, how high is the mountain?
Chapter 10 – Section I: Using the Sine and Cosine Rule
1) The angles of elevation to the top of a mountain are measured from beacons A and B, at sea.
If the beacons are 1473 meters apart, how high is the mountain?

3. 2) A roadway is horizontal for 524m from A to B, followed by a 23° incline 786m long from B to C. How far is it directly from A to C?
H&H, Math 3 text, chapter 10H
Answer: 1280meters

4. 3) David’s garden plot is in the shape of quadrilateral ABCD
3) David’s garden plot is in the shape of quadrilateral ABCD. A fence runs around the entire boundary of the plot. How long is the fence?
60.1° D A C B
102°
42°
12 m
3 m
77.9°
H&H, Math 3 text, chapter 10H, exercise 10

5. Bearings

6. Bearings

7. 4) For the diagram find: a) the bearing of B from A b) the bearing of C from B c) the bearing of A from C

8. 5) Gus walks for 12.2 km in the direction 123° from camp S and then for 8.9 km in the direction 226° to camp F. a) find the distance b) find the bearing of F from S

9. Homework Exercise 10I.1, pg 344 #1, 2, 4 Exercise 10I.2, pg347
#3, 5, 8, 9