PLEASE HELP TEST GRADE ILL MAR ANSWER AS BRAINLIEST The figure shown is made up of a triangle and a square. The perimeter of the figure is 56 inches. The three remaining sides are of equal length. What is the length of one of the remaining sides?

12 in

Step-by-step explanation:

56=10+10+3l, 56=20+3l, 36=3l, 12=l

Step-by-step explanation:

subtract the two triangle legs from the perimeter (56 - 20)

divide by 3 (36/3)

∠1≅∠2 by the alternate exterior angles theorem.

step-by-step explanation:

given, a ∥ b and ∠1 ≅ ∠3 .we have to prove that e ∥ f

we know that ∠1≅∠3 and that a || b because they are given. we see that by the alternate exterior angles theorem. therefore, ∠2≅∠3 by the transitive property. so, we can conclude that e || f by the converse alternate exterior angles theorem.

we have to fill the missing statement.

transitivity property states that if a = b and b = c, then a = c.

now, given ∠1≅∠3 and by transitivity property ∠2≅∠3 .

hence, to apply transitivity property one angle must be common which is not in result after applying this property which is ∠1.

the only options in which ∠1 is present are ∠1 and ∠2, ∠1 and ∠4

∠1 and ∠4 is not possible ∵ after applying transitivity we didn't get ∠4.

hence, the missing statement is ∠1≅∠2.

so, ∠1≅∠2 by the alternate exterior angles theorem.