Cd is the perpendicular bisector of both xy and st and cy=20.
find cx

a.5

b.15

c.20

d.22

The correct option is C.

Step-by-step explanation:

It is given that CD is the perpendicular bisector of both XY and ST, and CY=20.

In triangle XCD and YCD,

                        (Common sides)

             (Definition of perpendicular bisector)

             (Definition of perpendicular bisector)

By SAS postulate of congruent triangles,

The corresponding parts of congruent triangle are congruent,

               (CPCTC)

                (CY=20)

The length of CX is 20 units. Therefore the correct option is C.

answer:  

123455421

step-by-step explanation: easy