Explanation

A regular polygon has all sides and angles equal.

Among triangles, only an equilateral triangle has all three sides and angles equal, making it a regular polygon.

Explanation

The conjugate acid of water (H₂O) is H₃O⁺ (hydronium ion).

When water acts as a base, it accepts a proton (H⁺) and forms H₃O⁺.

Explanation

Pythagoras was an ancient Greek mathematician and philosopher.

He is famous for the Pythagorean Theorem, which relates to right-angled triangles.

Explanation

The Aryans are considered the founders of Vedic culture, which emerged around 1500 BCE in India.

They brought the Vedic texts and formed the foundation of Hinduism and early Indian civilization.

Explanation

The absolute value | -12 | represents the distance of -12 from zero, which is always positive.

Therefore, | -12 | = 12.

Explanation

Convert the mixed fraction to an improper fraction:

3 4/5 = (3 × 5 + 4) / 5 = 19/5

The reciprocal of 19/5 is 5/19.

Explanation

Successive refers to things that occur in sequence, one after the other, without interruption.

Successive means یکے بعد دیگرے

Following immediately one after the other means فوری طور پر ایک کے بعد ایک کے بعد

Explanation

In a right-angled triangle, one angle is 90°, and the sum of all three angles is 180°.

So, the sum of the two acute angles is:

180° - 90° = 90°

Explanation

A little means some but not much, which fits the context since the speaker has a small amount of money.

A little means تھوڑا سا

Explanation

In indirect speech, the exclamatory sentence is changed into a statement.

The present tense ("is") changes to past tense ("was").

The phrase "What a lovely dress it is!" is reported as "She exclaimed that it was a lovely dress."