Question

Four congruent circular holes with a diameter of 2 in. were punches out of a piece of paper.

What is the area of the paper that is left ? Use 3.14 for pi

Answer 1

Answer:80.94

Step-by-step explanation

Answer 2

For this case we first calculate the area of the complete rectangle.

We have then:

A1 = (8.5) * (11)

A1 = 93.5

Then, we calculate the area of each circle:

A2 = pi * r ^ 2

A2 = (3.14) * (2/2) ^ 2

A2 = 3.14

The total area is given by:

A = A1 - 4 * A2

A = 93.5 - 4 * (3.14)

A = 80.94 in ^ 2

Answer:

A) 80.94

Explanation: