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Effectus [21]
3 years ago
11

Congruent figure help please :)

Mathematics
1 answer:
laiz [17]3 years ago
7 0

Answer:

x = 29

Step-by-step explanation:

ΔABC ≅ ΔDEC,

So, ∠BAC  ≅∠CDE    {Corresponding parts of congruent triangles}

∠BAC = 74°

InΔABC,

∠ABC + ∠BAC + ∠BCA = 180

2x + 74 + 48 = 180

2x + 122 = 180  

Subtract 122 from both sides

2x = 180 - 122

2x = 58

Divide both sides by 2

x = 58/2

x = 29

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The average of eight numbers is 56. When one of the numbers was left out, the mean decreased to 54. What number was left out?
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The number that was left out is 70.

<h3>What is the number that was left out?</h3>

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To learn more about average, please check: brainly.com/question/25842202

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2 years ago
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See below in bold.

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