Plzz ! the figure below shows      adc  and    bec.complete the two-column proof.be    ac  and  ad    cbcb  ≅  caprove:   adc  ≅    bec

Consider triangles ADC and BEC.

1. BE⊥AC (statement ) and AD⊥BC;

CB≅CA (statement )

Reason: Given.

2. ∠ADC (statement ) and ∠BEC are right angles.

Reason: Perpendicular lines form right (statement ) angles.

3.  ∠BCE (statement ) = ∠ACD  (statement )

Reason: Reflexive Property of Congruence (statement ).

4. ΔADC≅ΔBEC (statement ).

Reason: HA Postulate (statement ).

answer: b)

step-by-step explanation:

its a dot plot because since the score is not high numbers.

- r3ktforgood ☕

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc