A triangle is a three-sided polygon with three acute angles. There are two primary types of triangles: isosceles and equilateral. Isosceles triangles have two sides that are equal in length, and one side that is different. Equilateral triangles have all three sides that are equal in length. This worksheet will help students to understand the differences between isosceles and equilateral triangles.

## Isosceles Triangles

An isosceles triangle has two sides that are equal in length and one side that is different. That is, the two sides of the triangle are of the same length, and the third side is different. Isosceles triangles are classified by their angles, which can either be acute, right, or obtuse. The angles in an isosceles triangle add up to 180°, the same as any triangle. The difference between an isosceles and an equilateral triangle is that the angles in an isosceles triangle are not necessarily equal.

## Equilateral Triangles

An equilateral triangle is a triangle with three equal sides and three equal angles. All three angles in an equilateral triangle are equal to 60°. This makes the triangle a regular polygon and it is also equiangular. The sides of an equilateral triangle are equal in length and the angles are all equal. The sum of the three angles in an equilateral triangle is always 180°, the same as any triangle.

## Using the Worksheet

This worksheet can be used to help students understand the differences between isosceles and equilateral triangles. It can be used as an introduction to the topic, or as a review. The worksheet consists of a number of questions that require students to identify the types of triangles based on their sides and angles. The worksheet can help students to learn the differences between the two types of triangles, and to understand the characteristics of each type.

This worksheet can be used to help students understand the differences between isosceles and equilateral triangles. It can be used as an introduction to the topic, or as a review. The questions on the worksheet can help students to learn the differences between the two types of triangles, and to understand the characteristics of each type. This worksheet can be a valuable tool for teachers and students alike.

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