Special Right Triangles
Trig Ratios
Find the Side
Find the Angle
100

The missing angle when the given angle measurements are 45 and 90 degrees.

What is 45 degrees?

100
The trig ratio used when given the adjacent and hypotenuse lengths.
What is cosine?
100

The missing hypotenuse length with the side lengths are 3 and 4

5
100
The missing angle in a triangle given angle measurements 29 and 90 degrees.
What is 61?
200

The missing angle measurement when the given angle measurements are 60 and 90 degrees.

What is 30 degrees?

200

The trig ratio used when given the opposite and adjacent lengths.

What is tangent?

200

The missing hypotenuse length given side lengths 9 and 12

What is 15?

200
The missing angle in a triangle given adjacent side length 16 and hypotenuse 20.3 (Round to the nearest whole degree)
What is 38 degrees?
300

The length of the hypotenuse in a 45-45-90 degree triangle with side length = x. 

x times square root of 2

300

The sine of angle A and for a triangle with opposite side length 4 and hypotenuse length 20.

What is 0.2?

300
The missing side length given an angle of 52 degrees and the adjacent side length of 12.5. (Round to the nearest whole number)
What is 16?
300
The missing angle measurement given an opposite side length of 5 and a hypotenuse length of 10.3 (Round to the nearest whole degree)
What is 29 degrees?
400

The formula for finding the hypotenuse in a 30-60-90 degree triangle if the shorter side is x.

What is 2x (two times x)?

400

The tangent of angle Z for a triangle with adjacent side length 15 and opposite side length 10. (Round to the tenths place)

What is 0.7?

400
The missing opposite side length given an angle of 53 degrees and a hypotenuse of length 2.5 (Round to the nearest whole number.)
What is 2?
400

The two acute angle measurements if the lengths of the sides are both 3.

What is 45 and 45 degress?

500

The height of an equilateral triangle with side length 6.

What is 3 times the square root of 3?

500

The cosine of angle A for a triangle with opposite side length 5 and hypotenuse length 13.

What is 0.9?

500
The missing adjacent side length given an angle of 41 degrees and a opposite side length of 7. (Round to the nearest whole number.)
What is 8?
500
The missing angle measurement given opposite side length 6.3 and adjacent side length 9. (Round to the nearest whole degree)
What is 35?
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