Finding the measure of an angle given arc length and radius

The video tutorial begins with a reminder about homework problems and introduces a circle problem involving arc length and angle. The teacher explains how to solve for the angle Theta using the given arc length and radius. The process involves dividing the arc length by the radius to find Theta in radians. The tutorial concludes with a clarification that the angle is in radians, not degrees, and a brief interruption for a news announcement.

What are the last problems Kimberly needs to write down for her homework?

• 8185 and 87

• 8186 and 88

• 8188 and 90

• 8187 and 89

What is the formula for arc length in terms of radius and angle?

• Arc length = Radius + Angle

• Arc length = Radius / Angle

• Arc length = Radius * Angle

• Arc length = Radius - Angle

If the arc length is 29 and the radius is 10, what is the angle in radians?

• 4.9 radians

• 2.9 radians

• 3.9 radians

• 1.9 radians

Why is it important to note that the angle is in radians?

• Because radians are smaller than degrees

• Because the formula only works with radians

• Because radians are easier to calculate

• Because radians are the same as degrees

What should you do if you have an unknown variable in an equation?

• Solve for it

• Multiply it by 10

• Add 10 to it

• Ignore it