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helpp mathhhh

16)in this figure ΔBAE≅DEA. which statement is true by CPCTC ? look at the first picture.

A) ∠GAE≅∠GEA

B)∠FGB≅∠FGE

C)∠BEA≅∠BEC

D)∠DGE≅∠FGA



17) If y = 22, find m∠C. look at the second picture.

A)136
B)60
C)68
D)44

18) in this diagram ΔABC≅ΔEDU. which statement is not necessarily true? look at the third picture.

A)∠B≅∠D

B)∠A≅∠E

C)BC≅CE

D)DE≅AB



19) Use the information given in the diagram. Tell why UW≅UW and ∠UVW≅∠WXU. look at the fourth picture.


A) Reflexive Property; Given

B)Given; Reflexive Property

C)Reflexive Property; Transitive Property

D)Transitive Property; Reflexive Property



20) Find the values of x and y that make these triangles congruent by HL. look at the fifth picture.

A) x=3, y=4
B)x=6, y=5
C)x=4, y=3
D)x=5,y=6

helpp mathhhh 16in this figure ΔBAEDEA which statement is true by CPCTC look at the first picture A GAEGEA BFGBFGE CBEABEC DDGEFGA 17 If y 22 find mC look at th class=
helpp mathhhh 16in this figure ΔBAEDEA which statement is true by CPCTC look at the first picture A GAEGEA BFGBFGE CBEABEC DDGEFGA 17 If y 22 find mC look at th class=
helpp mathhhh 16in this figure ΔBAEDEA which statement is true by CPCTC look at the first picture A GAEGEA BFGBFGE CBEABEC DDGEFGA 17 If y 22 find mC look at th class=
helpp mathhhh 16in this figure ΔBAEDEA which statement is true by CPCTC look at the first picture A GAEGEA BFGBFGE CBEABEC DDGEFGA 17 If y 22 find mC look at th class=
helpp mathhhh 16in this figure ΔBAEDEA which statement is true by CPCTC look at the first picture A GAEGEA BFGBFGE CBEABEC DDGEFGA 17 If y 22 find mC look at th class=

Respuesta :

mreijepatmat
CPCTC stands for : corresponding parts of congruent triangles are congruent.

16) A) ∠GAE≅∠GEA

17) if y° =22° so angle A = 2y=then angle A=44°
Since this triangle ABC is isosceles (AB=AC given), then Angle B= Angle C
In a triangle we know that the sum of all angles =180°, the 44°+2C=180
& C= (180-44)/2 = 68  (C)

18) C)BC≅CE is not necessarily true

19) Reflexive Property; Given

20) Right Triangles ABC & AED are congruent::
CB=ED (given)
Angle C = D (given)
Angle B = E =90° (given)
The 2 triangles are congruent ASA & AC = AD
Now we have the equalities:
1) BC=ED ===> x=y-1
And
2) AC=AD ===> 3x-2 = 2y+1
Let' arrange these 2 equations:

x-y = -1
3x-2y =3

Solving this system with 2 variables x & y gives: X=5 & Y=6 (D)