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denis23 [38]
3 years ago
15

Find the measure of angle A. Please help??

Mathematics
2 answers:
nika2105 [10]3 years ago
4 0

Answer:

Creo que es 40

Step-by-step explanation:

80+15x+(11x-4)=180

26x=104

x=4

Entonces

11x-4 --> 11*4-4 = 40

Over [174]3 years ago
3 0

Answer:

4

Step-by-step explanation:

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sladkih [1.3K]

Answer:

false

Step-by-step explanation:

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3 years ago
Suppose ΔXYZ is given, and you want to construct ΔABC so that the triangles are congruent. Which constructions would guarantee t
bekas [8.4K]

Answer:

A: constructing ΔABC so that AB ≅ XY, BC ≅ YZ, and CA ≅ ZX

C: constructing ΔABC so that AB ≅ XY, CA ≅ ZX, and ∠A ≅ ∠X

Step-by-step explanation:

* Lets revise the ways of constructing a triangle

- There are 3 ways to construct a triangle

# You must have length of one side and measures of two angles which

  are the endpoint of the side

# You must have a length of two sides and the measure of the including

  angle between the two sides

# You must have the length of the 3 sides

* Lets solve the problem

∵ Δ XYZ ≅ Δ ABC

∴ XY = AB , YZ = BC , ZX = CA

∴ m∠ X = m∠ A , m∠ Y = m∠ B , m∠ Z = m∠ C

- To construct Δ ABC You can use:

# The length of the 3 sides

∵ AB ≅ XY , BC ≅ YZ , CA ≅ ZX

∴ constructing ΔABC so that AB ≅ XY, BC ≅ YZ, and CA ≅ ZX ⇒ A

# The length of two sides and the measure of the including angle

∵ AB ≅ XY , CA = ZX

∵ The including angles between the sides are ∠A and ∠X

∴ constructing ΔABC so that AB ≅ XY, CA ≅ ZX, and ∠A ≅ ∠X ⇒ C

# The length of one side and the measures of two angles which are

   the endpoints of the side

∵ CA ≅ ZX

∵ The end points are C , A and Z , X

∴ constructing ΔABC so that CA ≅ ZX, ∠A ≅ ∠X, and ∠C ≅ ∠Z

- But this answer not in the choices

∴ The answer is A and C

4 0
3 years ago
Read 2 more answers
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aalyn [17]

Answer:

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Step-by-step explanation:

7 0
3 years ago
Reynaldo drew square EFGH. Then, he drew the image of it, square E'F'G'H', 4 centimeters to the left of the original figure. Lin
OLEGan [10]

Answer:

6 centimeters

Step-by-step explanation:

Square E'F'G'H' is just square EFGH translated to the left.

It is still the same size, just in a different location.

Line segment EF is the same length as segment E'F'.

6 centimeters

3 0
3 years ago
Describe the role of parents, grandparents and family members in promoting a healthy family and how they support mental and emot
olga55 [171]

Answer:Parents: raise child, Grandparents: offer support in raising child and financially help parents, family members: can be there for support and having family time is always fun for the children and a break for the parents

Step-by-step explanation:

This is my brief explanation but basically

Parents: They have the child and they raise them in their home and see them everyday

Grandparents: Rose the parents, they are older and can give money to the parents for things they can’t afford to spend on

Family members: are part of the team

4 0
3 years ago
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