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choose your answers from the drop - down menus. a. a rhombus has 4 cong…

Question

choose your answers from the drop - down menus.
a. a rhombus has 4 congruent sides, so segments ab, cb, ad, and cd are congruent.
b. segment db is congruent to segment db because segments are congruent to themselves.
c. triangle dab is congruent to triangle dcb by side - side - side triangle congruence theorem.
d. angle abd is congruent to angle cbd because corresponding parts of congruent triangles are congruent.
e. therefore, diagonal bd bisects angle abc because options: it divides the angle into 2 congruent angles, it divides the opposite side into 2 congruent segments, it divides the opposite angle into 2 congruent angles

Explanation:

Response
Part a

A rhombus is defined as a quadrilateral with all four sides congruent. So the number of congruent sides in a rhombus is 4.

Step1: Recall the definition of a rhombus

A rhombus is a parallelogram with 4 congruent sides.

In a rhombus, a segment is congruent to itself by the Reflexive Property of Congruence. Here, segment \( DB \) is congruent to segment \( DB \) (itself).

Step1: Apply the Reflexive Property

The Reflexive Property states that any geometric figure is congruent to itself. So segment \( DB \) is congruent to \( DB \).

To prove \( \triangle DAB \cong \triangle DCB \) in a rhombus:

  • \( AB = CB \) (sides of a rhombus are congruent)
  • \( AD = CD \) (sides of a rhombus are congruent)
  • \( DB = DB \) (common side, Reflexive Property)

By the Side - Side - Side (SSS) Triangle Congruence Theorem, if three sides of one triangle are congruent to three sides of another triangle, the triangles are congruent.

Step1: Identify the sides of the triangles

In \( \triangle DAB \) and \( \triangle DCB \), \( AB\cong CB \), \( AD\cong CD \), and \( DB\cong DB \).

Step2: Apply the SSS congruence theorem

Since three pairs of sides are congruent, by SSS, \( \triangle DAB\cong\triangle DCB \).

Answer:

4 congruent sides

Part b