4th Periodic Test Flashcards
total length of its boundary,
Perimeter of a polygon
Formula for Perimeter of triangle
P = a + b + c
Formula for perimeter square
P = 4(s)
The formula of the perimeter of rectangle
P = 2 ( l + w )
formula for perimeter of regular polygon
P = n x s
what us the formula of length in rectangle
L = P/2 - W
What is the formula of width in rectangle
P = 2L + 2W
refers to a measure of the size or extent of a two-dimensional surface.
Area
Formula for area of Triangle
A = ½ bh
Formula for area of square
A = S²
Formula for area of rectangle
A = l x w or lw
Formula for area of Parallelogram
A = bh
Formula for area of Trapezoid
A = (b1 + b2) h
—————
2
Formula for area of Circle
A = πr²
value of pi
3.1416
what is the means
a:b :: c:d
b and c
what is the extremes
a:b :: c:d
a and d
refers to the quantitative relationship between two or more values or quantities.
ratio
refers to the equality of two ratios.
proportion
It states that the product of extremes is equal to the product of means.
Cross Product
It is the property by interchanging the means.
Alternendo Property
It is the property by getting the reciprocal of both ratios.
Inverse Property
It is the property by adding 1 to both ratios.
Addition Property
refers to the quality or state of being similar
similarity
a number that scales, or multiplies, the size of an object.
scale factor
