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Phantasy [73]
3 years ago
6

Match the reasons with the statements given.

Mathematics
2 answers:
pantera1 [17]3 years ago
8 0

Given: ABCD is a rhombus

To prove: DB bisects ∠ABC and ∠ADC (∠1=∠2 and ∠3=∠4)

Proof: In ΔADB and ΔCDB

AD=CD               (sides of same rhombus)

DB=DB               (common in both triangle)

AB=CB                (sides of same rhombus)

∴ ΔADB ≅ ΔCDB by SSS congruence property.

Angle bisector: A line divide an angle into two equal part.

CPCT: Congruent part of congruence triangles.

Match the statements:-

  1. ABCD  is rhombus   ⇒    Given
  2. ΔADB≅ΔCDB   ⇒ Diagonals of parallelogram make congruent Δ      
  3. ∠1=∠2,∠3=∠4  ⇒ CPCTE                                  
  4. DB bisects ∠ABC and ∠ADC ⇒ Definition of angle bisector

Thus, Above matching is correct.

Alja [10]3 years ago
5 0
I believe the matching would be as follows;
1. ABCD is a rhombus -Given
2. Triangle ADB congruent to Triangle CDB- Diagonals of parallelogram make congruent triangles. The two triangles share a diagonal BD as their third side.
3. ∠1=∠2, ∠3=∠4 ; CPCTE
4. DB bisects ∠ABC and ∠ADC - definition of angle bisector
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