Explanation

Revelation is considered the most authentic and divine source of knowledge in many religious and philosophical perspectives.

It is believed to come directly from a higher power (God), making it absolute and unquestionable.

Explanation

Measurement involves numerical values, comparison, and quantities.

But a standard is a fixed reference point, not a direct measurement itself.

Standards provide a basis for measurement rather than being a measurable trait.

Explanation

Community represents the practical aspect of society’s ideology, as it reflects shared values, norms, and interactions among individuals.

It plays a crucial role in shaping social behavior, traditions, and collective identity within a society.

Explanation

Constructivism is a learning theory that suggests learners construct knowledge through experiences and interactions.

It emphasizes active learning, where students build their understanding rather than just receiving information passively.

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 lateral surface area of a right circular cone is given by the formula: πrℓ, where r is the radius and ℓ is the slant height.

This excludes the base area; the total surface area would be πr(r + ℓ).

Explanation

When two lines intersect, they form four angles around the intersection point.

The sum of these four angles is always 360°, as they complete a full circle.

Explanation

Basic assumptions (also called axioms or postulates) are statements accepted as true without proof.

Theorems, on the other hand, require proof based on these assumptions.

Explanation

The value of cosec 30° is the reciprocal of sin 30°.

Since sin 30° = 1/2,

cosec 30° = 1 / (1/2) = 2

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°