GCSE Maths - Area of a Sector and Length of an Arc of a Circle (Circles Part 3) #108

This video tutorial explains how to calculate the area of a sector and the length of an arc in a circle. It begins with a recap of key terms and introduces formulas for these calculations. The video emphasizes understanding the concept of sectors and arcs as fractions of a circle, using examples with simple and complex angles. It concludes with a practical example, demonstrating how to apply the formulas to solve problems.

What is the relationship between the angle of a sector and the area of the full circle?

What fraction of a circle does a sector with an angle of 90 degrees represent?

How do you calculate the area of a sector when given the angle and radius?

What is the formula for the area of a circle, and how does it relate to the area of a sector?

Explain how to find the length of an arc using the angle and radius.

How would you calculate the area of a sector with an angle of 113 degrees and a radius of 15 millimeters?

Describe the process to find the length of the arc for a sector with a given angle.