use the following diagram and information to answer the question.
given: abcd is a parallelogram. △abc≅△bcd
julie wants to prove that abcd is a square. she uses properties of congruent triangles and parallelograms to prove that ∠a≅∠b≅∠c≅∠d. she must also show that ab≅bc≅cd≅da to prove abcd is a square.

what else must julie do to prove abcd is a square?
a) julie can use properties of congruent triangles to show that ab¯≅cd and ad≅bc. then she can use the definition of parallelogram to show ab≅bc.
b) julie can use properties of congruent triangles to show that ab≅bc and bc≅cd. then she can show bc≅ad because opposite sides of a parallelogram are congruent.
c) julie can use the definition of a parallelogram to show that ab≅bc and bc≅cd. then she can use the definition of congruent triangles to show bc≅ad.
d)julie can use properties of congruent triangles to show that ac≅bd. then she can use the definition of parallelogram to show bc≅ad.

  b)  Julie can use properties of congruent triangles to show that AB≅BC and BC≅CD. Then she can show BC≅AD because opposite sides of a parallelogram are congruent

Step-by-step explanation:

On the assumption that Julie must show all four sides to be congruent, the one remaining step after using the properties of congruent triangles is to show that side AD is congruent to the rest of the sides. Answer choice B describes that.

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IMO, Julie is finished after she shows∠A≅∠B and AB≅BC, because a parallelogram will be a square if adjacent sides are congruent (makes it a rhombus) and adjacent angles are congruent (makes it a rectangle). A rhombus that is a rectangle is a square.

answer:   segregation violated the equal protection clause of the 14th amendment, which holds that no state can “deny to any person within its jurisdiction the equal protection of the laws.”

details/explanation:

brown v. board of education of topeka, decided by the us supreme court in 1954, ruled that all americans are entitled to the same civil liberties and protections in regard to access to education. until that decision, it was legal to segregate schools according to race, so that black students could not attend the same schools as white students.   an older supreme court decision, plessy v. ferguson (1896), had said that separate, segregated public facilities were acceptable as long as the facilities offered were equal in quality.   in the case of brown v. board of education, that standard was challenged and defeated.   segregation was shown to create inequality, and the supreme court unanimously ruled segregation to be unconstitutional.

the ruling was important in advancing civil rights because it affirmed that the 14th amendment applies to all rights and privileges of citizens, including access to   education.   this was being violated by states whose laws supported the segregation of schools.   section 1 of the 14th amendment reads as follows: