Question

Enjoy 9 points!!! In a quadrilateral ABCD, AB=BC=CD=DA. P is a point such that BP=DP. Prove that A,P,C are collinear.....

Answer 1

Step-by-step explanation:

ANSWER

ABCD is a quadrilateral in which all 4 sides are equal.

Any quadrilateral having all 4 sides equal is called a rhombus.

However, in a rhombus the measures of the angles can be anything other than 90deg.

Since 1 angle of the quad ABCD is 90deg, then remaining will also be 90deg because the sides are of equal lengths.

Hence the rhombus now becomes a square.