Special Right Triangles
Find a Missing Angle
Find a Missing Side
Sin A = Cos B
Just Stuff
100
How to find the hypotenuse in a 45-45-90 triangle.
What is multiply the leg by
sqrt(2)?
100
To find an angle, it is the button I must push in order to find the inverse of sin, cos, or tan.
What is the 2nd button?
100
The ratio you would write to find x:
What is sin 42 = x/25?
100
Sin 20o = Cos ___
What is 70o?
100
Tan 42 = ____ to the nearest 10,000th.
What is 0.9004?
200
How to find the hypotenuse and the long leg in a 30-60-90 triangle.
What is double the short leg and then multiply the short leg by
sqrt(3)
?
200
The missing angle rounded to the nearest tenth:
What is 48.6o?
200
The length of x in the figure below:
What is 3?
Hint: is there another way we could have figured this out?
200
Cos 40 = Sin ___
What is 50o?
200
A girl is standing 20 feet from a building. Her angle of elevation to the top of the building is 70o. This is the height of the building to the nearest whole number.
What is 55 feet?
300
The length of the hypotenuse in this triangle:
What is
4sqrt(2)?
300
The degree of the indicated angle to the nearest tenth:
What is 59o?
300
The height of the model building to the nearest whole number:
What is 81 inches?
300
In order for cos 32 to equal sin A, this must be the measure of
/_A.
What is 58o?
300
Cos E = 45/53 and ___.
What is 90/106?
400
The length of each leg in this triangle:
What is
8sqrt(2)?
400
The degree of the indicated angle to the nearest tenth:
What is 70.4o?
400
The height of the tree to the nearest whole number:
What is 49"?
400
In order for cos 42.7 to equal sin B, this must be the measure of
/_B.
What is 47.3o?
400
The length of x:
What is 4 sqrt (6)?
500
The length of the short leg and the hypotenuse in this triangle:
What are 4sqrt(3) and
8sqrt(3)?
500
The angle of elevation in this picture:
What is 60o?
500
A ladder is leaned against a wall. The base of the ladder is 4 feet from the wall. The angle of elevation is 75o. This is the length of the ladder to the nearest tenth.
What is 15.5 feet?
500
If cos A = 0.7265, sin B = ___.
What is 0.7265?
500
The ratio to find x using cosine.
What is cos 62 = x/14?