Flashcards in 4.1 Congruent Triangles Deck (15):

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## Congruent Triangles

### If triangle ABC is congruent to triangle PQR, then there is a correspondence between their angles and sides such that corresponding angles are congruent and corresponding sides are congruent

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## Equilateral Triangle

### An equilateral triangle has three congruent sides

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## Isosceles Triangle

### An isosceles triangle has at lease 2 congruent sides

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## Scalene Triangle

### A scalene triangle is a triangle that has no congruent sides

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## Acute Triangle

### An acute triangle has 3 acute angles

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## Equiangular Triangle

### An equiangular triangle has 3 congruent angles, each with a measure of 60 degrees

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## Right Triangle

### A right triangle is a triangle with exactly one right angle

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## Obtuse Triangle

### An obtuse triangle has exactly one obtuse angle

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## Vertex

### The vertex is the intersection point of the 2 sides of an angle

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## Opposite Side

### In triangle ABC, side BC is opposite angle A

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## Adjacent Side

### In a triangle or other polygon, 2 sides that share a common vertex are adjacent sides

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## Legs of a Right Triangle

### In a right angle, the sides adjacent to the right angle are the legs of the triangle

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## Hypotenuse of a Right Triangle

### In a right triangle, the side opposite the right angle is the hypotenuse of the triangle

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## Legs of an Isosceles Triangle

### In an isosceles triangle with exactly two congruent sides, the congruent sides are called the legs

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