Pythagoras Theorem
Trig Ratios
Missing Sides
Missing Angles
Special Angles
100
When using the Pythagorean Theorem, the Hypotenuse is labeled with what letter?
C
100
What word is used to remember the trigonometric ratios?
SOHCAHTOA
100
When using Trigonometry, the Hypotenuse is labeled with what letter?
H
100
If you are given the Hypotenuse and Opposite, which Trigonometric Identity do you use to find the angle?
Sine
100
Define angle of elevation.
The angle created when you look up.
200
What is Pythagoras Theorem?
c^2=a^2+b^2
200
What is the value of the opposite side in this triangle?
15
200
Fill in the blank:
If the unknown is up high, multiply.
If the unknown is down low, _______ you know.
Divide
200
Using Trigonometry, calculate the Hypotenuse when the Adjacent side = 31 and the angle = 48?
H = 46.3
200
If the angle of elevation is 30 degrees, what is the angle of depression?
30 Degrees.
The angle of depression and elevation are always equal.
300
Calculate the length of the Hypotenuse (tenth):
7.6
300
Which side is Adjacent to the indicated angle?
36
300
How would you solve the following equation to find x.
Sin 30 = x/20
Multiply by 20.
= 10
300
Using Trigonometry, If an angle had an opposite side length of 13m and an adjacent side length of 12m, what is the angle?
47 degrees
300
Is A or B the angle of depression?
B
400
Calculate the length of the hypotenuse:
26
400
What ratio would you use for the following question?
Sin (theta)=O /H
400
Solve for x.
cos 45=5/x
The unknown is down low, so divide.
x=5 divide cos 45
7.07
400
Find the measure of theta
theta=28.1
400
Calculate the angle of elevation from the Submarine to the Boat.
sin^-1(50/100)=theta
30 Degrees
500
What is the length of bd?
12
500
Find
cos(theta)
15/17
500
Using Trigonometry, calculate the opposite side when the Hypotenuse = 18km and the angle = 47?
O = 13.2km
500
Find theta if
sin(theta)=3/5
theta=36.9
500
From a lookout tower, David spots a bushfire at an angle of depression of 25◦. If the lookout tower is 42 m high, how far away (to the nearest metre) is the bushfire from the base of the tower?
21 m