# Flashcards - Basics of Geometry & Measurement

Flashcards - Basics of Geometry & Measurement
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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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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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square
In geometry, a square is a regular quadrilateral, which means that it has four equal sides and four equal angles
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rectangle
In Euclidean plane geometry, a rectangle is a quadrilateral with four right angles
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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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circle
A circle is a simple closed shape in Euclidean geometry
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circle
A circle is a simple closed shape in Euclidean geometry
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
rectangle
In Euclidean plane geometry, a rectangle is a quadrilateral with four right angles
square
In geometry, a square is a regular quadrilateral, which means that it has four equal sides and four equal angles
area
Area is the quantity that expresses the extent of a two-dimensional figure or shape, or planar lamina, in the plane
hypotenuse
In geometry, a hypotenuse is the longest side of a right-angled triangle, the side opposite of the 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
right triangle
A right triangle or right-angled triangle is a triangle in which one angle is a right angle
surface area
The surface area of a solid object is a measure of the total area that the surface of the object occupies
triangle
A triangle is a polygon with three edges and three vertices
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
octagon
In geometry, an octagon is an eight-sided polygon or 8-gon

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