Triangle Types Worksheet
Triangles are a fundamental concept in geometry, and understanding their different types is crucial for any math student. Whether you are a teacher searching for a useful educational resource or a student looking to improve your skills, this Triangle Types Worksheet is designed to help you master the classifications of triangles.
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What is an equilateral triangle?
An equilateral triangle is a type of triangle in which all three sides are of equal length and all three angles are also equal, measuring 60 degrees each.
What is an isosceles triangle?
An isosceles triangle is a triangle that has two sides of equal length and two equal angles opposite those sides.
What is a scalene triangle?
A scalene triangle is a type of triangle where all three sides have different lengths and all three angles are also different from each other. This distinguishes it from isosceles and equilateral triangles, which have at least two sides or two angles that are equal, respectively.
What is a right triangle?
A right triangle is a triangle with one angle that measures exactly 90 degrees, known as the right angle. The sides opposite the right angle are called the legs, while the side opposite the right angle is called the hypotenuse. This type of triangle follows the Pythagorean theorem, which states that the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the two legs.
What is an acute triangle?
An acute triangle is a type of triangle where all three interior angles are less than 90 degrees, which means that none of the angles is a right angle or obtuse angle. This type of triangle has all acute angles, making its shape more "pointy" or sharp compared to other types of triangles.
What is an obtuse triangle?
An obtuse triangle is a triangle in which one of the angles measures more than 90 degrees. Thus, an obtuse triangle has one angle greater than a right angle (90 degrees) and two angles that are acute (less than 90 degrees).
What is a congruent triangle?
A congruent triangle is a triangle that has three equal sides and three equal angles, making them identical in shape and size. When two triangles are congruent, it means that their corresponding sides and angles are equal, allowing them to be superimposed on each other when placed in the same position.
What is an exterior angle of a triangle?
An exterior angle of a triangle is an angle formed by one side of the triangle and the extension of an adjacent side. It is located outside the triangle, rather than inside like interior angles.
What is an interior angle of a triangle?
An interior angle of a triangle is an angle that is formed on the inside of the triangle by two adjacent sides. Each triangle has three interior angles, and the sum of all interior angles in a triangle is always equal to 180 degrees.
What is the sum of the angles in a triangle?
The sum of the angles in a triangle is always 180 degrees.
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