Question

1. Define the following terms:
(i) Quadrilateral (ii) Convex Quadrilateral
2. In a quadrilateral, define each of the following:
(i) Sides
(ii) Vertices (iii) Angles
(iv) Diagonals
(v) Adjacent angles(vi) Adjacent sides (vii) Opposite sides(viii) Opposite angles
(ix) Interior
(x) Exterior​

Answer 1

Answer:

A quadrilateral is a polygon that has four sides (or edges) and four vertices (or corners).

It can be any four-sided closed shape.

(ii) A convex quadrilateral is a mathematical figure whose every internal angle is less than or equal to 180 degrees.