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
14 * tan 24
x = 6

2. x 2. 24 25 Sin x = opp 25 2nd sin(24/25) hyp X = 74 6 x 3. Cos 27 = 27
adj
X = 7

3. 4. opp 16 x Tan 26 = x 16 adj 16 / tan 26 X = 33 opp 10 5. 10 30
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?
26 15
Tanx=
26ft
2nd tan (26/15)
60º xº
15ft

5. angle gets larger……lets check.
As it gets closer to lunch time, the sun rises and the shadow gets smaller. It appears the
angle gets larger……lets check.
7am
11am
26ft
26ft
60º
69º
15ft
10ft
Tanx=26/10 then x=69º

6. The plane will meet the ground at and angle of 41º
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
Cosx =
2ndCos = (150/200)
The plane will meet the ground at and angle of 41º

7. RECAP What is the sin ratio? What is the cos ratio?
oppostie hypotenuse
What is the cos ratio?
adjacent hypotenuse
What is the tan ratio?
opposite adjacent
What calculator key do you use when calculating the angle?
2nd
If x is on the bottom do you multiply or divide?
divide

8. HOMEWORK
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How many things do you see?