Trigonometry Application Review

1
Trigonometry Application Review Slide Show
1.
24
14
adj
x
opp
Work out the trigonometry steps using a flow map
Tan 24 x/14
x 6
14 tan 24
2
x
2.
2425
Sin x
24
opp
25
2nd sin(24/25)
hyp
X 74
6x
3.
Cos 27
27
x
6 / cos 27
hyp
6
adj
X 7
3
26
4.
16 x
opp
Tan 26
x
16
adj
16 / tan 26
X 33
opp
10
5.
1030
Sin x
hyp
2nd sin (10/30)
x
30
X 19
4
6. A flag pole of height 26 ft has a shadow of
length 15 ft at 7am. Find the angle of
elevation of the sun according to the
diagram. As it gets closer to lunch time, do
you think the angle would get smaller or
larger?
2615
Tanx
26ft
2nd tan (26/15)
60º
xº
15ft
5
As it gets closer to lunch time, the sun rises
and the shadow gets smaller. It appears the angle
gets largerlets check.
7am
11am
26ft
26ft
60º
69º
15ft
10ft
Tanx26/10 then x69º
6
7. A plane is making an emergency landing. The
runway is 150 yards and he has 200 more
yards before he hits land. At what angle will
he meet the ground?
200 yds
hyp
x
adj
150 yds
150200
Cosx
2ndCos (150/200)
The plane will meat the ground at and angle of
41º
7
RECAP
What is the sin ratio?
oppostiehypotenuse
What is the cos ratio?
adjacenthypotenuse
What is the tan ratio?
oppositeadjacent
What calculator key do you use when calculating
the angle?
2nd
If x is on the bottom do you multiply or divide?
divide
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HOMEWORK
Page 773 43-47 all
How many things do you see?