When using the Pythagorean Theorem, the Hypotenuse is labeled with what letter?
C
When using the Pythagorean Theorem, the shorter sides are labeled with what letters?
A or B
tan (theta)=
(Opposite) / (Adjacent)
sin (theta)=
(Opposite) / (Hypotenuse)
cos(theta)=
(Adjacent)/(Hypotenuse)
What is the hypotenuse always across from?
The right angle (90 degrees)
What are the two shorter sides of the triangle called?
The legs
When using Trigonometry, the side length across from the angle is labeled with what letter?
O
When we are solving for an angle, we need to use an ___________ trig function.
The side across from the right angle is labeled with what letter?
H
Calculate the length of the hypotenuse:
26
Calculate the length of the Hypotenuse (to 2 dp):
7.62
Evaluate: tan(48) (to 2 decimal places)
1.11
Evaluate: sin(25) (to 2 decimal places)
0.42
Evaluate: cos(59) (to 2 decimal places)
0.52
Calculate x (to 2 dp):
23.24
Calculate x (to 2 dp):
19.42
Using Trigonometry, calculate the Hypotenuse when the Adjacent side = 31 and the angle = 48? (2 dp)
H = 46.33
Using Trigonometry, calculate the Hypotenuse when the Opposite side = 9 and the angle = 24? (2 dp)
H = 22.13
Using Trigonometry, calculate the opposite side when the Hypotenuse = 18 and the angle = 47? (2 dp)
O = 13.16
What is the length of bd?
12
Daniel rides his bicycle 21 km west and then 18 km north. How far is he from his starting point? (to 2 dp)
27.66 km
What is the horizontal distance?

12.8
Penny can see the clock on the top of her town’s courthouse from her front yard. The clock is at a horizontal distance of 140 meters from her house. If the angle of elevation from where she stands in her yard to the clock is 15°, what is the elevation of the clock if her eye level is 1.6 meters above the ground? Round your answer to the nearest tenth.
39.1
A lighthouse sits at the edge of a cliff, as shown. A ship at sea level is 610 meters from the base of the cliff. The angle of elevation from sea level to the base of the lighthouse is 55.1°. The angle of elevation from sea level to the top of the lighthouse is 56.5°. What is the height of the top of the lighthouse to the cliff?

47.2