Gr 10 Math Ch 4: Special Angles

What is the value of sin 30°?

$ oot{2}{2}$

$ oot{3}{6}$

$1/2$ (correct)

$ oot{3}{3}$

In a 45°-45°-90° triangle, what is the length of the hypotenuse?

$ oot{2}{2}$

$ oot{2}$ (correct)

$2$

$1$

Which of the following values corresponds to cos 60°?

$ oot{3}{3}$

$ oot{2}{2}$

$1/2$ (correct)

$ oot{3}{2}$

What is the value of tan 45°?

$1$ Signup and view all the answers

In a 30°-60°-90° triangle, what is the length of the side opposite the 60° angle?

$ oot{3}$ Signup and view all the answers

Which trigonometric ratio corresponds to sin 60°?

$ oot{3}{2}$ Signup and view all the answers

What is the cosine of 30°?

√3/2 Signup and view all the answers

In a 30°-60°-90° triangle, what is the ratio of the side opposite the 30° angle to the hypotenuse?

1:2 Signup and view all the answers

What is the sine of 45°?

√2/2 Signup and view all the answers

What is true about the tangent of 60°?

It equals √3 Signup and view all the answers

In a 45°-45°-90° triangle, what is the length of the sides opposite the 45° angles?

1 Signup and view all the answers

What is the sine of 60°?

√3/2 Signup and view all the answers

What is the relationship between the lengths of the sides in a 30°-60°-90° triangle?

The side opposite the 30° angle is half the length of the hypotenuse. Signup and view all the answers

Which of the following represents the tangent of 30°?

1/√3 Signup and view all the answers

In a right triangle with angles 30° and 60°, which ratio correctly expresses sin 60°?

√3/2 Signup and view all the answers

What is the value of cos 45° expressed in simplest terms?

√2/2 Signup and view all the answers

What is true about the lengths of the sides in a 45°-45°-90° triangle?

Both legs have equal lengths. Signup and view all the answers

Which statement about the trigonometric ratios for special angles is correct?

The cosine of 30° is equal to the sine of 60°. Signup and view all the answers

Gr 10 Math Ch 4: Special Angles

Questions and Answers

What is the value of sin 30°?

In a 45°-45°-90° triangle, what is the length of the hypotenuse?

Which of the following values corresponds to cos 60°?

What is the value of tan 45°?

In a 30°-60°-90° triangle, what is the length of the side opposite the 60° angle?

Which trigonometric ratio corresponds to sin 60°?

What is the cosine of 30°?

In a 30°-60°-90° triangle, what is the ratio of the side opposite the 30° angle to the hypotenuse?

What is the sine of 45°?

What is true about the tangent of 60°?

In a 45°-45°-90° triangle, what is the length of the sides opposite the 45° angles?

What is the sine of 60°?

What is the relationship between the lengths of the sides in a 30°-60°-90° triangle?

Which of the following represents the tangent of 30°?

In a right triangle with angles 30° and 60°, which ratio correctly expresses sin 60°?

What is the value of cos 45° expressed in simplest terms?

What is true about the lengths of the sides in a 45°-45°-90° triangle?

Which statement about the trigonometric ratios for special angles is correct?

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