1)four congruent circular holes with a diameter of 2in were punched out of a piece of paper,what is the area of the paper that i

Question

3 years ago

7

1)four congruent circular holes with a diameter of 2in were punched out of a piece of paper,what is the area of the paper that i

s left use 3.14pi
A)80.94
B)90.36
C)93.50
D)106.06
and can someone explain how to find the answer for these type of problem?

Mathematics

2 answers:

Svetradugi [14.3K] · Answer 1 · 2022-05-19T13:45:13+03:00

Svetradugi [14.3K]3 years ago

8 0

Answer:

80.94 is the answer

Step-by-step explanation:

Vesna [10] · Answer 2 · 2022-05-19T12:37:07+03:00

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