# Flashcards - Solving Angle Problems with Triangles & Quadrilaterals

Flashcards - Solving Angle Problems with Triangles & Quadrilaterals
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regular polygon
In Euclidean geometry, a regular polygon is a polygon that is equiangular and equilateral
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In Euclidean plane geometry, a quadrilateral is a polygon with four edges and four vertices or corners
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parallelogram
In Euclidean geometry, a parallelogram is a simple quadrilateral with two pairs of parallel sides
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area
Area is the quantity that expresses the extent of a two-dimensional figure or shape, or planar lamina, in the plane
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hypotenuse
In geometry, a hypotenuse is the longest side of a right-angled triangle, the side opposite of the right angle
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Pythagorean theorem
In mathematics, the Pythagorean theorem, also known as Pythagoras's theorem, is a fundamental relation in Euclidean geometry among the three sides of a right triangle
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right triangle
A right triangle or right-angled triangle is a triangle in which one angle is a right angle
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right triangle
A right triangle or right-angled triangle is a triangle in which one angle is a right angle
Pythagorean theorem
In mathematics, the Pythagorean theorem, also known as Pythagoras's theorem, is a fundamental relation in Euclidean geometry among the three sides of a right triangle
hypotenuse
In geometry, a hypotenuse is the longest side of a right-angled triangle, the side opposite of the right angle
area
Area is the quantity that expresses the extent of a two-dimensional figure or shape, or planar lamina, in the plane
parallelogram
In Euclidean geometry, a parallelogram is a simple quadrilateral with two pairs of parallel sides
In Euclidean plane geometry, a quadrilateral is a polygon with four edges and four vertices or corners
regular polygon
In Euclidean geometry, a regular polygon is a polygon that is equiangular and equilateral
base
A military base is a facility directly owned and operated by or for the military or one of its branches that shelters military equipment and personnel, and facilitates training and operations
equilateral triangle
In geometry, an equilateral triangle is a triangle in which all three sides are equal
triangle
A triangle is a polygon with three edges and three vertices
special triangles
A special right triangle is a right triangle with some regular feature that makes calculations on the triangle easier, or for which simple formulas exist
rhombi
In Euclidean geometry, a rhombus, plural rhombi or rhombuses, is a simple quadrilateral whose four sides all have the same length
diagonal
In geometry, a diagonal is a line segment joining two vertices of a polygon or polyhedron, when those vertices are not on the same edge
geometric proofs
In mathematics, a proof is a deductive argument for a mathematical statement

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