Question

drag the steps below to arrange them in the correct order for sammys proof. ① keyboard help △abc is an isosceles triangle. ∠b≅∠c. ab = ac. m∠b = m∠c.

Explanation:

Step1: Start with the definition of isosceles triangle

$\triangle ABC$ is an isosceles triangle

Step2: Recall the property of side - lengths in isosceles triangle

$AB = AC$

Step3: Use the property of angles opposite equal sides

$\angle B\cong\angle C$

Step4: Equate the measures of congruent angles

$m\angle B=m\angle C$

Answer:

1. $\triangle ABC$ is an isosceles triangle
2. $AB = AC$
3. $\angle B\cong\angle C$
4. $m\angle B=m\angle C$