Angle CGF = 30

Expression 20: "B" Subscript, 2 , Baseline equals "R" equals 6.8 0 5 2 0 6 4 6 6 8 2

equals

6.8 0 5 2 0 6 4 6 6 8 2

Expression 21: "C" Subscript, 1 , Baseline equals negative "A" Subscript, 1 , Baseline equals negative 6.4 7 2 1 3 5 9 5 5

equals

negative 6.4 7 2 1 3 5 9 5 5

Expression 22: "C" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline equals 2.1 0 2 9 2 4 4 4 8 4 8

equals

2.1 0 2 9 2 4 4 4 8 4 8

Expression 23: "D" Subscript, 1 , Baseline equals negative "E" Subscript, 1 , Baseline equals negative 4

equals

negative 4

Expression 24: "D" Subscript, 2 , Baseline equals "E" Subscript, 2 , Baseline equals negative 5.5 0 5 5 2 7 6 8 1 8 8

equals

negative 5.5 0 5 5 2 7 6 8 1 8 8

Expression 25: "E" Subscript, 1 , Baseline equals "R" cosine left parenthesis, 90 minus 2 alpha , right parenthesis equals 4

equals

Expression 26: "E" Subscript, 2 , Baseline equals "R" sine left parenthesis, 90 minus 2 alpha , right parenthesis equals negative 5.5 0 5 5 2 7 6 8 1 8 8

equals

negative 5.5 0 5 5 2 7 6 8 1 8 8

Expression 27: "F" Subscript, 1 , Baseline equals "D" Subscript, 1 , Baseline plus StartFraction, "D" Subscript, "F" , Baseline Over "s" , EndFraction left parenthesis, "C" Subscript, 1 , Baseline minus "D" Subscript, 1 , Baseline , right parenthesis equals negative 4.9 4 4 2 7 1 9 1

equals

negative 4.9 4 4 2 7 1 9 1

Expression 28: "F" Subscript, 2 , Baseline equals "D" Subscript, 2 , Baseline plus StartFraction, "D" Subscript, "F" , Baseline Over "s" , EndFraction left parenthesis, "C" Subscript, 2 , Baseline minus "D" Subscript, 2 , Baseline , right parenthesis equals negative 2.5 9 9 3 5 7 5 6 9 8 6

equals

negative 2.5 9 9 3 5 7 5 6 9 8 6

Expression 29: "G" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline equals 2.1 0 2 9 2 4 4 4 8 4 8

equals

2.1 0 2 9 2 4 4 4 8 4 8

Expression 30: "K" Subscript, 1 , Baseline equals "E" Subscript, 1 , Baseline plus 0.7cosine theta Subscript, 2 , Baseline equals 3.6 8 2 2 0 6 6 5 0 1 8

equals

3.6 8 2 2 0 6 6 5 0 1 8

Expression 31: "K" Subscript, 2 , Baseline equals "E" Subscript, 2 , Baseline plus 0.7sine theta Subscript, 2 , Baseline equals negative 4.8 8 1 8 2 3 1 1 4 9 5

equals

negative 4.8 8 1 8 2 3 1 1 4 9 5

Expression 32: theta Subscript, 2 , Baseline equals 180 minus 2 beta plus 45 equals 117

equals

117

Graphs

Expression 34: "y" less than 35 Has graph. To audio trace, press ALT+T.

Expression 35: polygon left parenthesis, "A" , "C" , "A" , "B" , "C" , "D" , "E" , "F" , "G" , "F" , "E" , right parenthesis Has graph.

Expression 36: left parenthesis, "K" Subscript, 1 , Baseline plus StartFraction, 0.7 "t" cos left parenthesis, theta Subscript, 2 , Baseline minus 135 , right parenthesis Over StartRoot, 2 , EndRoot , EndFraction , "K" Subscript, 2 , Baseline plus StartFraction, 0.7 "t" sin left parenthesis, theta Subscript, 2 , Baseline minus 135 , right parenthesis Over StartRoot, 2 , EndRoot , EndFraction , right parenthesis Has graph.

domain t Minimum:

less than or equal to "t" less than or equal to

domain t Maximum:

Expression 37: left parenthesis, "K" Subscript, 1 , Baseline plus StartFraction, 0.7 "t" cos left parenthesis, theta Subscript, 2 , Baseline plus 135 , right parenthesis Over StartRoot, 2 , EndRoot , EndFraction , "K" Subscript, 2 , Baseline plus StartFraction, 0.7 "t" sin left parenthesis, theta Subscript, 2 , Baseline plus 135 , right parenthesis Over StartRoot, 2 , EndRoot , EndFraction , right parenthesis Has graph.

domain t Minimum:

less than or equal to "t" less than or equal to

domain t Maximum:

Points

EF = FG