Understanding Angles and Functions

The video tutorial covers how to use the Desmos scientific calculator to perform inverse sine calculations. It begins with setting up the calculator, followed by examples of calculating angles using given width and length measurements. The tutorial concludes with tips on understanding the relationship between dimensions and angles, and advice for test preparation.

What is the first step to take if you don't have a graphing calculator?

• Buy a new calculator

• Use a smartphone app

• Visit desmos.com for a scientific calculator

• Ask a friend for help

Which function should you select on Desmos to find the inverse sine?

• Algebra

• Function

• Statistics

• Geometry

In the first example, what is the calculated angle when the width is 1 cm and the length is 2.2 cm?

• 27 degrees

• 60 degrees

• 15 degrees

• 45 degrees

What is the angle obtained when the width is 0.6 and the length is 4.1?

• 5.2 degrees

• 8.4 degrees

• 12.7 degrees

• 20 degrees

In the final example, what angle is calculated with a width of 1.3 and a length of 1.6?

• 45 degrees

• 70 degrees

• 30 degrees

• 54 degrees

What is the relationship between the size of the width and length and the angle size?

• Smaller width and length result in a smaller angle

• Larger width and length result in a larger angle

• Smaller width and length result in a larger angle

• Width and length do not affect the angle size

What angle size can you expect if you have a small width and length?

• 30 degrees

• 10 degrees

• 60 degrees

• 90 degrees

What angle size can you expect if you have a long width and length?

• 80 degrees

• 5 degrees

• 10 degrees

• 45 degrees

Where can you find the scientific calculator recommended by the teacher?

• Google

• Desmos

• YouTube

• Khan Academy

What does the teacher wish the students at the end of the session?

• See you next class

• Enjoy your weekend

• Good luck on your test

• Happy holidays