question_answer 15)

Draw a rough sketch of a \[\Delta ABC\]. Mark a point P in its interior and a point Q in its exterior. Is the point A in its exterior or in its interior?

Answer:

(i) A triangle is a three sided polygon. A rough sketch of a \[\Delta ABC\] is given. (ii) Now, from the figure Point P is inside the \[\Delta ABC\] and point Q is outside the \[\Delta ABC\]. The point A is neither in the exterior nor in the interior of \[\Delta ABC\]because point A is the vertex of \[\Delta ABC\], so it lies on the \[\Delta ABC\].