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Sergeeva-Olga [200]
3 years ago
11

Which of the following triangle congruence theorems would be used in this proof?

Mathematics
1 answer:
HACTEHA [7]3 years ago
5 0

The answer is SSS congruency.

AB=CD (given)

BC=DA (given)

AC=AC (common side)

∴ΔADC≅ΔABC

Please mark brainliest if this helps!

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Answer:

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Step-by-step explanation:

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seropon [69]

Answer:

  • 7 feet, 3 feet, 7.5 feet

Step-by-step explanation:

Let the sides be a, b and c.

<h3>Given</h3>

The length of one side of a triangle is 2 feet less than three times the length of its second side

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The length of the third side is 3/4 of the sum of the lengths of the first two sides:

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The perimeter of the triangle is 17.5 feet:

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<h3>Solution</h3>

Substitute a with b in the second equation:

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Now substitute a and c with b in the third equation and solve for b:

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The sides of the triangle are:

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