Trapezium / Triangle = 8 / 5

Expression 18: "D" Subscript, 1 , Baseline equals negative "S" equals negative 6

equals

negative 6

Expression 19: "D" Subscript, 2 , Baseline equals "O" Subscript, 2 , Baseline equals 0

equals

Expression 20: "E" Subscript, 1 , Baseline equals StartFraction, negative "S" Over 2 , EndFraction equals negative 3

equals

negative 3

Expression 21: "E" Subscript, 2 , Baseline equals negative StartFraction, "S" StartRoot, 3 , EndRoot Over 2 , EndFraction equals negative 5.1 9 6 1 5 2 4 2 2 7 1

equals

negative 5.1 9 6 1 5 2 4 2 2 7 1

Expression 22: "F" Subscript, 1 , Baseline equals StartFraction, "S" Over 2 , EndFraction equals 3

equals

Expression 23: "F" Subscript, 2 , Baseline equals negative StartFraction, "S" StartRoot, 3 , EndRoot Over 2 , EndFraction equals negative 5.1 9 6 1 5 2 4 2 2 7 1

equals

negative 5.1 9 6 1 5 2 4 2 2 7 1

Expression 24: StartFraction, left parenthesis, "H" Subscript, 1 , Baseline minus "G" Subscript, 1 , Baseline , right parenthesis squared plus left parenthesis, "G" Subscript, 2 , Baseline minus "H" Subscript, 2 , Baseline , right parenthesis squared Over left parenthesis, "A" Subscript, 1 , Baseline minus "H" Subscript, 1 , Baseline , right parenthesis squared plus left parenthesis, "A" Subscript, 2 , Baseline minus "H" Subscript, 2 , Baseline , right parenthesis squared , EndFraction equals 1

equals

Expression 25: 7 "S" "G" Subscript, 1 , Baseline plus StartFraction, 20 "S" squared Over 4 , EndFraction equals left parenthesis, 6 "G" Subscript, 1 , Baseline plus 6 "S" , right parenthesis left parenthesis, negative StartFraction, "S" Over 2 , EndFraction , right parenthesis

Expression 26: "G" Subscript, 1 , Baseline equals negative StartFraction, 32 "S" squared Over 40 "S" , EndFraction equals negative 4.8

equals

negative 4.8

Expression 27: "G" Subscript, 2 , Baseline equals left parenthesis, "G" Subscript, 1 , Baseline plus "S" , right parenthesis StartRoot, 3 , EndRoot equals 2.0 7 8 4 6 0 9 6 9 0 8

equals

2.0 7 8 4 6 0 9 6 9 0 8

Expression 28: "H" Subscript, 1 , Baseline equals 2 "G" Subscript, 1 , Baseline plus StartFraction, 3 "S" Over 2 , EndFraction equals negative 0.6

equals

negative 0.6

Expression 29: "H" Subscript, 2 , Baseline equals negative StartFraction, "S" Over 2 , EndFraction StartRoot, 3 , EndRoot equals negative 5.1 9 6 1 5 2 4 2 2 7 1

equals

negative 5.1 9 6 1 5 2 4 2 2 7 1

Graphs

Expression 31: "y" less than 40 Has graph. To audio trace, press ALT+T.

Expression 32: polygon left parenthesis, "A" , "F" , "H" , right parenthesis Has graph.

Expression 33: polygon left parenthesis, "D" , "E" , "H" , "G" , right parenthesis Has graph.

Expression 34: polygon left parenthesis, "A" , "H" , "A" , "B" , "C" , "G" , "H" , "G" , "D" , "E" , "F" , right parenthesis Has graph.

Points

AH = GH