Question

I need your help. help please

Answer 1

13.

arc AB=arc BC ( given in question) and it is a side.

angle ABC=angle BCD ( both are right angle) and it is an angle.

arc BC = arc BS(common sides in two triangle) and it is a side.

Hence triangleABC is cocurent to triangle BCD by

SAS axiom.

14.

If you look closer

angle ACB=angle DCE as they are vertically opposite to each other

so,

in triangle ABC and CDE,

angle ABC=angle DCE ( being vertically opposite angles)

BC =CD ( it is given in question)

angle ABC= angle CDE( since two angles of two triangles are equal, the third angles are also equal)

Hence triangle ABC is congurent to triangle CDE by

ASA axiom