Trigonometry

How do you find the length of a side using the sine function?

• Use the formula: side = hypotenuse * sin(angle).

• Use the formula: side = hypotenuse / sin(angle).

• Use the formula: side = sin(angle) / hypotenuse.

• Use the formula: side = hypotenuse + sin(angle).

Find the measure of the missing angle if the answer is 26°.

• 20°

• 22°

• 26°

• 30°

What is the length of side x if it is given as 7.44 cm?

• 6.50 cm

• 7.00 cm

• 7.44 cm

• 8.00 cm

What is the sine of an angle in a right triangle?

• The ratio of the length of the adjacent side to the length of the hypotenuse.

• The ratio of the length of the opposite side to the length of the hypotenuse.

• The ratio of the length of the opposite side to the length of the adjacent side.

• The ratio of the length of the hypotenuse to the length of the adjacent side.

What is the unit circle and its significance in trigonometry?

• A circle with a radius of 1 centered at the origin, used to define trigonometric functions for all angles.

• A circle with a radius of 2 that represents the sine and cosine functions.

• A circle used to measure angles in degrees and radians only.

• A circle that helps in calculating the area of triangles in trigonometry.

How do you find the length of a side using the tangent function?

• Use the formula: side = adjacent * tan(angle).

• Use the formula: side = opposite / tan(angle).

• Use the formula: side = hypotenuse * tan(angle).

• Use the formula: side = adjacent / tan(angle).

What is the relationship between the angles in a triangle?

• The sum of the angles in a triangle is always 180°.

• The sum of the angles in a triangle is always 90°.

• The angles in a triangle can be any value.

• The sum of the angles in a triangle is always 360°.

What is the tangent of an angle in a right triangle?

• The ratio of the length of the opposite side to the length of the adjacent side.

• The sum of the lengths of the opposite and adjacent sides.

• The product of the lengths of the opposite and adjacent sides.

• The difference between the lengths of the opposite and adjacent sides.

Solve for x. If x = 7.5, what is the value of x?

• 5.0

• 7.0

• 7.5

• 8.0

What does SOH CAH TOA stand for in trigonometry?

• SOH: Sine = Opposite/Hypotenuse, CAH: Cosine = Adjacent/Hypotenuse, TOA: Tangent = Opposite/Adjacent

• SOH: Sine = Adjacent/Hypotenuse, CAH: Cosine = Opposite/Hypotenuse, TOA: Tangent = Opposite/Adjacent

• SOH: Sine = Opposite/Adjacent, CAH: Cosine = Opposite/Hypotenuse, TOA: Tangent = Adjacent/Hypotenuse

• SOH: Sine = Opposite/Hypotenuse, CAH: Cosine = Opposite/Adjacent, TOA: Tangent = Adjacent/Hypotenuse