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Geometry
5th Grade Geometry
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Terms in this set (26)
Polygon
any closed shape formed, or created, by straight segments
Regular polygon
a special type of polygon with congruent sides and angles
Triangle
any polygon with three sides
Equilateral triangle
a triangle with three congruent sides and angles
Isosceles triangle
a triangle with two congruent sides and angles
Right triangle
a triangle with one right angle (90° = right angle)
Obtuse triangle
a triangle with one obtuse angle (> 90° = obtuse angle)
Acute triangle
a triangle will three acute angles (< 90° = acute angle)
Quadrilateral
any polygon with four sides
Trapezoid
a quadrilateral with a pair of parallel sides
Kite
a quadrilateral with two sets of congruent, adjacent sides
Parallelogram
a quadrilateral with two pairs of parallel, congruent sides
Rhombus
a parallelogram with all four sides equal in length
Rectangle
a quadrilateral with two pairs of congruent, parallel sides and four right angles
Square
a parallelogram with four congruent sides and four right angles
Pentagon
any polygon with five sides
Hexagon
any polygon with six sides
Heptagon
any polygon with seven sides
Octagon
any polygon with eight sides
Nonagon
any polygon with nine sides
Decagon
any polygon with ten sides
Similar
same shape but different size
Perimeter
the sum of all lengths, or sides, around a polygon
Area
the amount of space covered, or inside, a polygon
Volume
the amount of 3D space an object occupies
Adjacent
next to
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Verified questions
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Al Capone walked 2 km north, 6 km west, 4 km north, and 2 km west. If Big Al decides to "go straight," how far must he walk across the fields to his starting point?
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Tell whether the statement is always, sometimes, or never true. Explain your reasoning. Vertical angles are supplements of each other.
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Point M is the midpoint of A̅B̅ where AM = 3x + 8 and MB = 6x - 4. Find AB.
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The outside diameter of a pipe is 5cm. The inside diameter is 4cm. the pipe is 4m long. What is the volume of the material used for this length of pipe? Round your answer to the nearest cubic centimeter.