Finding Angles in Right Triangle Trigonometry

The video tutorial covers using trigonometry to find missing angles in triangles. It explains how to label triangle sides and use trigonometric functions like tangent, cosine, and sine to calculate angles. The tutorial also includes a reflection section for students to provide feedback on their learning experience.

What is the first step in using trigonometry to find a missing angle in a triangle?

• Draw the triangle

• Label the sides O, H, and A relative to the angle

• Choose any trigonometric function

• Calculate the hypotenuse

Tags

CCSS.HSG.SRT.C.6

Which trigonometric function is used when you know the opposite and adjacent sides?

• Cosine

• Secant

• Sine

• Tangent

Tags

CCSS.HSG.SRT.C.6

How do you solve for an angle when using the tangent function?

• Tangent of angle equals opposite over hypotenuse

• Tangent of angle equals opposite over adjacent

• Tangent of angle equals hypotenuse over opposite

• Tangent of angle equals adjacent over opposite

Tags

CCSS.HSG.SRT.C.6

What tool can be used to calculate the angle using the tangent function?

• Compass

• Protractor

• Ruler

• Desmos

What is the inverse function used to calculate the angle from the cosine ratio?

• Cosine

• Sine inverse

• Cosine inverse

• Tangent inverse

Which function would you use if you know the adjacent and hypotenuse sides of a triangle?

• Cotangent

• Tangent

• Cosine

• Sine

Tags

CCSS.HSG.SRT.C.6

How do you find the third angle in a triangle if two angles are known?

• Add the two known angles and subtract from 180

• Divide 180 by the sum of the two known angles

• Multiply the two known angles

• Subtract the two known angles from 180

Tags

CCSS.8.G.A.5

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

• Adjacent over hypotenuse

• Opposite over adjacent

• Opposite over hypotenuse

• Hypotenuse over opposite

Tags

CCSS.HSG.SRT.C.6

What aspect of the lesson was the teacher seeking feedback on?

• The choice of trigonometric functions used

• The complexity of the problems

• The clarity of the explanations

• The length of the video

What was the teacher's goal for the class as mentioned in the reflection?

• To improve practical drawing skills

• To enhance collaborative learning

• To better prepare students for the ACT

• To focus on theoretical knowledge only

Tags

CCSS.RI.9-10.3

CCSS.RI.11-12.3

CCSS.RI.8.3

CCSS.RI.7.3

CCSS.RI.6.3