Question

When Elyse moved last weekend, the circular glass top for an end table broke. To replace it, she bought a circular glass top with a diameter of 16 inches.

What is the approximate area of the circular glass top Elyse bought? (Use 3.14 for .)

Answer 1

Approx = Area = 200.96in^2 when using 3.14 for approx.

A = 201.16in ^2 for calculator.

Explanation:

A=πr2

A=3.14 x 8^2 = 64π

A = 201.16in ^2 when using true decimals of pi on calculator

A = 200.96in ^2 Approx 3.14 calculation.

So it is important to actually remember pi as equal to 3.14159 for preciseness.

and not 3.14,

3.14

x 64.00

0.16

0.40

12.00

2.40

6.00

180.00 =

200.96