Shared Flashcard Set

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4.1 - Triangles and Angles
Geometry
10
Other
10th Grade
11/11/2009

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Cards

Term

equilateral triangle

Definition

[image]

3 congruent sides

Term
isosceles triangle
Definition

[image]

At least 2 congruent sides

Term
scalene triangle
Definition

[image]

No congruent sides

Term
acute triangle
Definition

[image]

3 acute angles

Term
equiangular triangle
Definition

[image]

3 congruent angles

Term
right triangle
Definition

[image]

1 right angle

Term
obtuse triangle
Definition

[image]

1 obtuse angle

Term
Triangle Sum Theorem
Definition

The sum of the measures of the interior angles of a triangle is 180°.

m<A + m<B + m<C = 180°

Term
Exterior Angle Theorem
Definition

The measure of an exterior angel of a triagle is equal to the sum of the mesures of the two nonadjacent interior angles.

m<1 = m<A + m<B

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