Explanation

A polygon with 8 sides has 8 vertices. To form a triangle, you need to choose 3 vertices out of these 8. This can be done in:

8C3 = 8! / (3! x (8-3)!)

= 8! / (3! x 5!)

= (8 x 7 x 6) / (3 x 2 x 1)

= 56

So, 56 triangles can be formed by joining the angular points of a polygon with 8 sides.

Explanation

The Paris Peace Accords ended the active US involvement in the Vietnam War.

The agreement was signed on January 27, 1973 by the United States, North and South Vietnam, and the Provisional Revolutionary Government of the Republic of South Vietnam.

Explanation

In indirect speech, "will" changes to "would," and "this night" changes to "that night" to reflect past reporting.

Explanation

Correct sentence:

"If he had come to me, I would have helped him."

This is intended to be a third conditional sentence

If + past perfect, would have + past participle

 The right choice ("had come") is not among the options.

Explanation

that is contrary to law

جو کہ قانون کے خلاف ہے

Explanation

Detest means نفرت کرنا

Love means محبت

Explanation

The correct sentence is: "Nobody but you could be selfish."

The word "but" is used here to mean "except," emphasizing exclusivity.

Explanation

Mesh topology is a type of networking where all nodes cooperate to distribute data amongst each other.

Explanation

Explanation

Photosynthesis occurs in the chloroplast, an organelle in plant cells containing chlorophyll.

It captures sunlight to produce food through the conversion of carbon dioxide and water.