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igor_vitrenko [27]
3 years ago
8

Which congruence theorems or postulates could be given as reasons why ABC =XYZ HELP !!!!

Mathematics
2 answers:
lara31 [8.8K]3 years ago
4 0
Answers: 
A) SAS
B) ASA
E) LL

============================================================

Explanation:

Let's go through each possible answer choice

A. We can use SAS because we know that AC = XZ (horizontal sides) is one pair of congruent sides, the angle pairing is C = Z, and the other pair of sides is BC = YZ (vertical sides)

B. We can also use ASA. Note how A = X is one pair of angles, AC = XZ is the middle pair of sides, and C = Z is the second pair of angles. The side is between the angles.

C. We can't use SSS as we don't know AB = XY is true or not. There are no tick marks indicating congruence.

D. We can't use LA here because we don't know the altitudes (LA = leg altitude)

E. We can use LL here because we have two right triangles. The two pairs of legs (AC = XZ and BC = YZ) are congruent based on the tickmarks.

F. We can't use HL similar to the reasoning for choice C. We don't know the hypotenuses are congruent or not. If we knew that AB = XY, then we could use HL (hypotenuse leg).


vladimir1956 [14]3 years ago
3 0

The right answeres are LL, LA, ASA, and SAS

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Andrew [12]
Answer:  x = 9.611 ;  or ;  x = 9  11/18 .
_________________________________________________
Explanation:
________________________________________________

All angles of any triangle must add up to 180 degrees.

So,  (10x - 4)  + (8x + 3) + 91 = 180 ;  Solve for "x" ; 
___________________________________________
    10x - 4 + 8x + 3 + 81 = 180 ;

Combine the "like terms" on the left-hand side of the equation:
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      +10x + 8x = 18x ;
        
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          18x  +  7 = 180 ;
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   Subtract  "7" from each side of the equation:
___________________________________________
         18x + 7 - 7 = 180 - 7 ;
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to get:  
  
         18x  = 173 ; 
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Divide EACH side of the equation by "18" ; to isolate "x" on one side of the equation;  and to solve for "x" ; 
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         18x / 18  = 173 / 18 ;
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                   x = 9.6111111111111111....
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Write as:  9.611 ;  or;   9  11/18.
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7 0
3 years ago
PLEASE HELP WILL MARK BRAINLIEST!
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Answer:

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