Complete the two-column proof by providing the missing statements or reasons. Given: ABCD is rhombus Prove: ∠1≅∠2
Statement Reason
1. 1. Given
2. AD=BC =CD=BA 2.
3. DO=OB;AO=OC 3. Diagonals of a parallelogram bisect each other.
4.ΔDOC≅ΔBOA 4.
5. ∠1≅∠2 5.

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

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step-by-step explanation:

okay, what do you want us to do?

anyway, the cost of labor per hour for repair shop b is $50 per hour.

the repair bill for your car at repair shop b is $553

the parts for repair shop b cost is   $497.07

step-by-step explanation: