Solving for Unknown Side in Similar Triangles Using Proportions

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Okay, I will solve for \(x\). Here's the solution:

Task 1

First, we need to determine if the two triangles are similar. We can check if their angles are equal.

  • Triangle \(BCD\): Angles are \(39^\circ\), \(86^\circ\), and \(55^\circ\).
  • Triangle \(EFG\): Angles are \(39^\circ\), \(86^\circ\), and \(55^\circ\).

Since the angles of the two triangles are the same, the triangles are similar by the Angle-Angle-Angle (AAA) similarity criterion.

Task 2

Now that we know the triangles are similar, we can set up a proportion to find \(x\). We need to match the corresponding sides.

  • Side \(BD\) corresponds to side \(EG\)
  • Side \(BC\) corresponds to side \(EF\)

So, we can set up the proportion:

\(\frac{BD}{EG} = \frac{BC}{EF}\)

Plugging in the given values:

\(\frac{97}{x} = \frac{61}{15}\)

Task 3

Now, we solve for \(x\):

\(x = \frac{97 \cdot 15}{61}\)

\(x = \frac{1455}{61}\)

\(x \approx 23.852459\)

Rounding to the nearest tenth, we get:

\(x \approx 23.9\)

Answer:
\(x \approx 23.9\)

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Okay, I will solve for \(x\) in the second problem. Here's the solution:

Task 1

First, we need to determine if the two triangles are similar. We can check if their angles are equal.

  • Triangle \(RST\): Angles are \(49^\circ\), \(57^\circ\), and \(74^\circ\).
  • Triangle \(UVW\): Angles are \(49^\circ\), \(57^\circ\), and \(74^\circ\).

Since the angles of the two triangles are the same, the triangles are similar by the Angle-Angle-Angle (AAA) similarity criterion.

Task 2

Now that we know the triangles are similar, we can set up a proportion to find \(x\). We need to match the corresponding sides.

  • Side \(RS\) corresponds to side \(UV\)
  • Side \(RT\) corresponds to side \(UW\)

So, we can set up the proportion:

\(\frac{RS}{UV} = \frac{RT}{UW}\)

Plugging in the given values:

\(\frac{83}{37} = \frac{91}{x}\)

Task 3

Now, we solve for \(x\):

\(x = \frac{91 \cdot 37}{83}\)

\(x = \frac{3367}{83}\)

\(x \approx 40.566265\)

Rounding to the nearest tenth, we get:

\(x \approx 40.6\)

Answer:
\(x \approx 40.6\)

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Okay! I see three problems. I will solve for \(x\) in the third problem. Here's the solution:

Task 1

First, we need to determine if the two triangles are similar. We can check if their angles are equal.

  • Triangle \(PQR\): Angles are \(67^\circ\), \(54^\circ\), and \(59^\circ\).
  • Triangle \(STU\): Angles are \(67^\circ\), \(54^\circ\), and \(59^\circ\).

Since the angles of the two triangles are the same, the triangles are similar by the Angle-Angle-Angle (AAA) similarity criterion.

Task 2

Now that we know the triangles are similar, we can set up a proportion to find \(x\). We need to match the corresponding sides.

  • Side \(RQ\) corresponds to side \(TS\)
  • Side \(PQ\) corresponds to side \(US\)

So, we can set up the proportion:

\(\frac{RQ}{TS} = \frac{PQ}{US}\)

Plugging in the given values:

\(\frac{37}{x} = \frac{40}{31}\)

Task 3

Now, we solve for \(x\):

\(x = \frac{37 \cdot 31}{40}\)

\(x = \frac{1147}{40}\)

\(x = 28.675\)

Rounding to the nearest tenth, we get:

\(x \approx 28.7\)

Answer:
\(x \approx 28.7\)

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Okay, I see three problems and I have solved all of them for you.

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Okay, I see three problems. I will solve all of them for you and present the solutions together.

Problem 1

Task 1: Check for Similarity

  • Triangle \(BCD\): Angles are \(39^\circ\), \(86^\circ\), and \(55^\circ\).
  • Triangle \(EFG\): Angles are \(39^\circ\), \(86^\circ\), and \(55^\circ\).

The triangles are similar by the AAA criterion.

Task 2: Set up Proportion

\(\frac{BD}{EG} = \frac{BC}{EF}\)

\(\frac{97}{x} = \frac{61}{15}\)

Task 3: Solve for \(x\)

\(x = \frac{97 \cdot 15}{61}\)

\(x = \frac{1455}{61}\)

\(x \approx 23.852459\)

Rounding to the nearest tenth:

\(x \approx 23.9\)

Answer: \(x \approx 23.9\)

Problem 2

Task 1: Check for Similarity

  • Triangle \(RST\): Angles are \(49^\circ\), \(57^\circ\), and \(74^\circ\).
  • Triangle \(UVW\): Angles are \(49^\circ\), \(57^\circ\), and \(74^\circ\).

The triangles are similar by the AAA criterion.

Task 2: Set up Proportion

\(\frac{RS}{UV} = \frac{RT}{UW}\)

\(\frac{83}{37} = \frac{91}{x}\)

Task 3: Solve for \(x\)

\(x = \frac{91 \cdot 37}{83}\)

\(x = \frac{3367}{83}\)

\(x \approx 40.566265\)

Rounding to the nearest tenth:

\(x \approx 40.6\)

Answer: \(x \approx 40.6\)

Problem 3

Task 1: Check for Similarity

  • Triangle \(PQR\): Angles are \(67^\circ\), \(54^\circ\), and \(59^\circ\).
  • Triangle \(STU\): Angles are \(67^\circ\), \(54^\circ\), and \(59^\circ\).

The triangles are similar by the AAA criterion.

Task 2: Set up Proportion

\(\frac{RQ}{TS} = \frac{PQ}{US}\)

\(\frac{37}{x} = \frac{40}{31}\)

Task 3: Solve for \(x\)

\(x = \frac{37 \cdot 31}{40}\)

\(x = \frac{1147}{40}\)

\(x = 28.675\)

Rounding to the nearest tenth:

\(x \approx 28.7\)

Answer: \(x \approx 28.7\)

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## Задание 1

### Task 1: Check for Similarity

*   Triangle $GIH$: Angles are $55^\circ$, $50^\circ$, and $75^\circ$.
*   Triangle $LKJ$: Angles are $55^\circ$, $50^\circ$, and $75^\circ$.

The triangles are similar by the AAA criterion.

### Task 2: Set up Proportion

$\frac{GI}{LJ} = \frac{IH}{JK}$

$\frac{16}{54} = \frac{19}{x}$

### Task 3: Solve for $x$

$x = \frac{19 \cdot 54}{16}$

$x = \frac{1026}{16}$

$x = 64.125$

Rounding to the nearest tenth:

$x \approx 64.1$

**Answer:** $x \approx 64.1$
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