Exploring Exact Values and Reciprocals in Right Triangles

What is the sine of 53 degrees approximately?

• 0.866

• 1.0

• 0.798

• 0.5

What is the exact value of sine 30 degrees?

• 1/3

• 1/2

• √3/2

• 1

In a right-angled triangle with a 30-degree angle, what is the length of the hypotenuse if the opposite side is 1?

• 1

• 2

• √3

• √2

What is the cosine of 30 degrees?

• 1

• 1/2

• √3/2

• √2/2

What is the tangent of 30 degrees?

• √3

• 1

• 1/√3

• 1/2

What is the cosine of 60 degrees?

• √2/2

• 1/2

• √3/2

• 1

What is the sine of 45 degrees?

• √3/2

• 1/√2

• 1/2

• 1

What is the tangent of 45 degrees?

• 1/√3

• 1/2

• 1

• √3

What is the reciprocal of cosine called?

• Cosecant

• Secant

• Cotangent

• Tangent

What is the value of cosecant 30 degrees?

• 1/2

• 2

• √3

• 1