Question

4.12 Quadrilaterals
A four sided polygon is a quadrilateral. It has
4 sides and 4 angles. As in the case of a
triangle, you can visualise its interior too.
Note the cyclic manner in which the
vertices are named.
This quadrilateral ABCD (Fig 4.23) has
four sides AB, BC, CD and DA. It has four
angles ZA, ZB, ZC and ZD.​

Answer 1

sorry weak in maths sorryy...................