How to find the Area of a Circle

The video tutorial from Tarver Academy introduces the concept of area, specifically focusing on the area of a circle. It explains the formula for calculating the area using pi and the radius, and demonstrates how to compute the area both in terms of pi and using an approximation of pi (3.14). The tutorial emphasizes understanding the formula and provides a step-by-step calculation example, concluding with a recap of the key points discussed.

What is the formula for the area of a circle?

• pi r squared

• 2 pi r

• pi d squared

• 2 pi d

If the radius of a circle is 8, what is the area in terms of pi?

• 32 pi

• 8 pi

• 64 pi

• 16 pi

What is the approximate value of pi used in calculations?

• 3.14

• 3.16

• 3.13

• 3.15

How would you express the area of a circle with radius 8 using pi as 3.14?

• 200.96

• 201.06

• 202.96

• 203.06

Why is the exact value of pi usually not used in calculations?

• It is an irrational number

• It is too small

• It is a repeating decimal

• It is a complex number