Trigonometry

sin, cos, or tan ?

32m

x

24

sin, cos, or tan ?

x

13

35

sin, cos, or tan ?

x

128254

sin, cos, or tan ?

x

30

48

sin, cos, or tan ?

x

24

58

sin, cos, or tan ?

x

321125

sin, cos, or tan ?

x

321

25

sin, cos, or tan ?

x31

45

Find the angles marked in each of the following

Find the angles marked in each of the following

Find the length of the side marked x

Find the length of the side marked x

Calculate the angle between the brace and the wall.

Calculate the length of BC

2004 EXAM

Find CD, the height of C above the ground.

Find angle DAC, the angle the support wire, AC, makes with the level ground.

Find EG, the height of the right-hand post.

Find CF, the length of the high-wire.

Find the length of the orienteering course.

2005

Find how far the foot of the ladder will be from the wall, i.e. find SR.

Calculate the length of bracing that will be required, i.e. find HC.

Find the angle the roof makes with the horizontal, i.e. find angle EHD.

FG = 2.8 m.FK = 3.03 m.

Find the angle HKF.

Calculate the length of the brace, DJ.

Calculate the length of ladder if it reaches 3.1 m above level ground, ie find XA.

2006

Calculate the distance, AB, sailed by Rewa’s boat

Calculate the distance, ED, that Lee’s boat is blown off-course down the pool

Calculate the distance HI

Calculate the size of the angle JKL

Calculate the distance between R and S.

Calculate the length of the rope (TA).

Bearings and vectors and we are done!