# Angle A is a right angle in △ABC. Which side is opposite to angle A?

Triangles are 3-sided polygons that are of many types. The triangle which has one of its angles as 90 degrees is called a right-angled triangle.

## Answer: In the above triangle △ABC, the side opposite to angle A is BC.

Let's understand the solution.

**Explanation:**

The opposite side to a particular angle in a triangle is that side that is not an adjacent side to that angle.

From the above figure, we see that both sides AB and AC are adjacent to angle A.

Only, side BC is not adjacent to angle A.

### Hence, in the above triangle △ABC, the side opposite to angle A is BC.

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