Polygons and Circles

Coordinates

Expression 28: "K" equals "X" times StartRoot, 2 , EndRoot

equals

4.2 4 2 6 4 0 6 8 7 1 2

Expression 29: "A" Subscript, 1 , Baseline equals "K" cosine StartFraction, 5 pi Over 4 , EndFraction

equals

negative 3

Expression 30: "A" Subscript, 2 , Baseline equals "K" sine StartFraction, 5 pi Over 4 , EndFraction

equals

negative 3

Expression 31: "B" Subscript, 1 , Baseline equals "K" cosine StartFraction, 3 pi Over 4 , EndFraction

equals

negative 3

Expression 32: "B" Subscript, 2 , Baseline equals "K" sine StartFraction, 3 pi Over 4 , EndFraction

equals

Expression 33: "C" Subscript, 1 , Baseline equals "K" cosine StartFraction, pi Over 4 , EndFraction

equals

Expression 34: "C" Subscript, 2 , Baseline equals "K" sine StartFraction, pi Over 4 , EndFraction

equals

Expression 35: "D" Subscript, 1 , Baseline equals "K" cosine StartFraction, 7 pi Over 4 , EndFraction

equals

Expression 36: "D" Subscript, 2 , Baseline equals "K" sine StartFraction, 7 pi Over 4 , EndFraction

equals

negative 3

Expression 37: "E" Subscript, 1 , Baseline equals negative "G" Subscript, 1 , Baseline

equals

negative 7.5

Expression 38: "E" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline

equals

negative 3

Expression 39: "F" Subscript, 1 , Baseline equals StartAbsoluteValue, 0 , EndAbsoluteValue

equals

Expression 40: "F" Subscript, 2 , Baseline equals negative StartFraction, "x" Subscript, 4 , Baseline "b" Over "a" , EndFraction plus "y" Subscript, 4 , Baseline

equals

Expression 41: "G" Subscript, 1 , Baseline equals StartFraction, "a" "A" Subscript, 2 , Baseline minus "a" "y" Subscript, 4 , Baseline Over "b" , EndFraction plus "x" Subscript, 4 , Baseline

equals

7.5

Expression 42: "G" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline

equals

negative 3

Expression 43: "x" Subscript, 1 , Baseline equals negative StartFraction, 3 "X" Over 2 , EndFraction

equals

negative 4.5

Expression 44: "y" Subscript, 1 , Baseline equals negative StartFraction, "X" Over 2 , EndFraction

equals

negative 1.5

Expression 45: "x" Subscript, 2 , Baseline equals StartAbsoluteValue, 0 , EndAbsoluteValue

equals

Expression 46: "y" Subscript, 2 , Baseline equals "B" Subscript, 2 , Baseline plus "R"

equals

4.5

Expression 47: "x" Subscript, 3 , Baseline equals StartFraction, 3 "X" Over 2 , EndFraction

equals

4.5

Expression 48: "y" Subscript, 3 , Baseline equals negative StartFraction, "X" Over 2 , EndFraction

equals

negative 1.5

Expression 49: "x" Subscript, 4 , Baseline equals "x" Subscript, 2 , Baseline minus StartFraction, "b" "R" Over "L" Subscript, "e" "n" , Baseline , EndFraction

equals

1.2

Expression 50: "y" Subscript, 4 , Baseline equals "y" Subscript, 2 , Baseline plus StartFraction, "a" "R" Over "L" Subscript, "e" "n" , Baseline , EndFraction

equals

5.4

Expression 51: "a" equals "x" Subscript, 3 , Baseline minus "x" Subscript, 2 , Baseline

equals

4.5

Expression 52: "b" equals "y" Subscript, 3 , Baseline minus "y" Subscript, 2 , Baseline

equals

negative 6

Points

Start black, "A" End black

Start black, "B" End black

Start black, "C" End black

Start black, "D" End black

Start black, "E" End black

Start black, "F" End black

Start black, "G" End black

Start black, left parenthesis, "x" Subscript, 1 , Baseline ; "y" Subscript, 1 , Baseline , right parenthesis End black

Start black, left parenthesis, "x" Subscript, 2 , Baseline ; "y" Subscript, 2 , Baseline , right parenthesis End black

Start black, left parenthesis, "x" Subscript, 3 , Baseline ; "y" Subscript, 3 , Baseline , right parenthesis End black

Start black, left parenthesis, "x" Subscript, 4 , Baseline ; "y" Subscript, 4 , Baseline , right parenthesis End black

Start black, "A" Subscript, "B" , Baseline equals "B" Subscript, 2 , Baseline minus "A" Subscript, 2 , Baseline equals 4 times "R" equals 6 End black