11.1 Flashcards

1
Q

Perimeter

A
sum of the lengths of the sides of a polygon 
Rect. --> 
p=2W+2L=2(W+L)
Sq. --> 
p=4*side
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2
Q

Linear Measurement

A

perimeter is a linear measurement. The units for perimeters are cm, m, inch, ft, mi, and so on. Perimeters are never measured in square units such as square feet.
*** a one-dimensional measurement (length, distance) ex. 3cm^1

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3
Q

Area

A

the number of square units contained in the interior of a polygon (measured in square units such as square meters or square feet)
*** three formulas

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4
Q

Postulate 22: Area of a Square Postulate

A

the area of a square is the square of the length of its side, or A = s^2

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5
Q

Postulate 23: Area Congruence Postulate

A

if two polygons are congruent, then they have the same area

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6
Q

Postulate 24: Area Addition Postulate

A

the area of a region is the sum of the areas of all its nonoverlapping parts

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7
Q

Theorem 11.1: Area of a Rectangle Theorem

A

the area of a rectangle is the product of its base and height, or A = bh

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