Using the formula:

Which is, 3.14 x 2^2 (radius is half of diameter)
Which equals 12.56.
Is that what the books called ?
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It is only possible to give details of the elements of a text by reading that text, but I can show you how these elements are established.
The exposition is the moment in history where the scenarios, the characters and even the theme of the text are presented. The function of the exposition is to promote an introduction, where the reader will know the basic points of the plot. The rising action presents a series of events that create a progressive tension in the plot that is transmitted to the reader. The climax is the moment of greatest tension in the plot and consists of the moment when the main character will face his or her worst challenge. Falling action occurs when the main challenge has been overcome by the character and at that moment, the tension begins to fall and the story is moving towards the end. The end of the story is called resolution and it is the moment when everything is completed and finalized.
Answer: Idiom
Explanation:
The options include:
a. Personification
b. Metaphor
c. Similie
d. Idiom
The figurative language used in this expression is referred to as an idiom. An idiom simply refers to the words or the phrases whose meaning can't be easily known based on the way the words are written. They're words that aren't taken literally.
They're just meant to create an image or have an effect on the reader. For example, saying someone has a cold feet simply means that the person is anxious or nervous and not that the feet of the person is cold.
Here, the dog eating an homework simply means that Daniel didn't do the homework and he's looking for excuses.
In The Illustrated Man, two stories that represent the theme of an optimistic vision of the future are "The Man" and "The Rocket."
In "The Man," the vision of the future is optimistic because, for one, the Earth has not been (or is not about to be destroyed). Technology has not destroyed humanity. Instead, evidence of Jesus has been found on other planets. Those who have encountered him (or who have found evidence of him) live in bliss and and are contented.
In "The Rocket," the vision of the future is optimistic because, as in "The Man," the Earth has not been (or is not about to be destroyed). Technology has not destroyed humanity. Instead, it is possible to go into outer space. When Bodoni cannot decide which of his family will go, he instead installs a virtual-reality theater so that his family can remain together and enjoy space virtually.
In both of these stories, technology is not presented as a destructive force. Humanity has not been destroyed. Therefore, these stories are optimistic.