Triangle Angle Calculation Quiz

What is the initial step to find angle x in the given figure?

• Subtract the given angles from 90 degrees

• Multiply the given angles by 2

• Divide the given angles by 2

• Add the given angles to 90 degrees

Which trigonometric function is used to calculate angle a?

• Sine

• Cosine

• Secant

• Tangent

What is the approximate value of angle a?

• 45 degrees

• 36.87 degrees

• 30 degrees

• 50 degrees

In the first method to find angle b, what is the length of the side formed by dividing 31 by 2?

• 52

• 31

• 15.5

• 39

What trigonometric function is used to find angle b over 2 in the first method?

• Sine

• Tangent

• Cosine

• Cotangent

What is the approximate value of angle b using the first method?

• 45 degrees

• 34.68 degrees

• 50 degrees

• 30 degrees

Which law is used in the second method to find angle b?

• Law of Tangents

• Law of Sines

• Law of Cosines

• Pythagorean Theorem

What is the approximate value of angle b using the second method?

• 50 degrees

• 34.68 degrees

• 45 degrees

• 30 degrees

What is the final value of angle x?

• 34.68 degrees

• 36.87 degrees

• 18.45 degrees

• 45 degrees

What is the final step to find angle x?

• Multiply angles a and b by 2

• Divide angles a and b by 2

• Subtract angles a and b from 90 degrees

• Add angles a and b to 90 degrees