Question

classify the triangle as equilateral, isosceles, or scalene.

choose the correct answer below.
a. scalene triangle
b. isosceles triangle
c. equilateral triangle

Explanation:

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<reasoning>

Analyze the geometric markings on the triangle

\[
\text{The given triangle in the upper right corner has tick marks (congruence marks) on exactly two of its sides.}
\]

Apply the definition of triangle types

\[

$$\begin{aligned} &\text{Equilateral: Three congruent sides.} \\ &\text{Isosceles: At least two congruent sides.} \\ &\text{Scalene: No congruent sides.} \end{aligned}$$

\]

Determine the correct classification

\[
\text{Since exactly two sides are marked as congruent, the triangle is classified as an isosceles triangle.}
\]
</reasoning>

<answer>
<mcq-option>A. Scalene triangle</mcq-option>
<mcq-correct>B. Isosceles triangle</mcq-correct>
<mcq-option>C. Equilateral triangle</mcq-option>
</answer>

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"Mathematics",
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]
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Answer:

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<reasoning>

Analyze the geometric markings on the triangle

\[
\text{The given triangle in the upper right corner has tick marks (congruence marks) on exactly two of its sides.}
\]

Apply the definition of triangle types

\[

$$\begin{aligned} &\text{Equilateral: Three congruent sides.} \\ &\text{Isosceles: At least two congruent sides.} \\ &\text{Scalene: No congruent sides.} \end{aligned}$$

\]

Determine the correct classification

\[
\text{Since exactly two sides are marked as congruent, the triangle is classified as an isosceles triangle.}
\]
</reasoning>

<answer>
<mcq-option>A. Scalene triangle</mcq-option>
<mcq-correct>B. Isosceles triangle</mcq-correct>
<mcq-option>C. Equilateral triangle</mcq-option>
</answer>

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