Explanation

The area  𝐴 of an equilateral triangle with side length 𝑎 is calculated using the formula  𝐴 = 3/4 𝑎^2.

This formula derives from the general area formula for triangles and takes into account the properties of equilateral triangles.

Explanation

The sentence "The patient had died before the doctor arrived" uses the past perfect tense.

مریض ڈاکٹر کے آنے سے پہلے ہی دم توڑ چکا تھا۔

It to indicate that one action (the patient dying) happened before another past action (the doctor arriving).

Explanation

MS Access, the "Format Painter" tool is used to copy the formatting of one control and apply it to another.

This helps maintain consistency in the design of forms and reports.

Explanation

"Subjunctive" is a mood used in verbs, not a part of speech.

The main parts of speech are:

1. Noun
2. Pronoun
3. Verb
4. Adjective
5. Adverb
6. Preposition
7. Conjunction
8. Interjection

Explanation

"Who" is a relative pronoun in this sentence.

As it introduces the clause "who robbed you," providing more information about "the man."

It connects the clause to the noun it describes.

Explanation

 "Credulous" describes a person who is too willing to believe others easily, often without sufficient evidence.

It is different from "credible," which means believable or trustworthy.

Explanation

Phishing is a type of cybercrime where an attacker sends a fake email or message that appears to be from a trustworthy source, aiming to trick the victim into revealing sensitive information such as:

• Bank account numbers
• Credit card details
• Online payment information
• Passwords

The goal of phishing is to deceive individuals into divulging confidential information, which can then be used for malicious purposes, such as identity theft or financial fraud.

Explanation

Rectangles are not always similar because their side lengths can vary, leading to different proportions.

In contrast, circles, squares, and equilateral triangles are always similar as they maintain consistent shapes and ratios.

Explanation

A composite number is a natural number greater than 1 that has more than two positive divisors.

Both 6 and 4 are composite numbers, as they can be divided by 1, themselves, and other numbers.

However, 2 is a prime number because it only has two divisors: 1 and itself.

Explanation

Air, water, and noise pollution are recognized types of environmental pollution.

While "wood pollution" is not a valid category.

These forms of pollution harm the environment and living organisms in various ways.