Angle ABC = 54°| Desmos

式16: "E" Subscript, 1 , Baseline equals "A" Subscript, 1 , Baseline

equals

3.5 2 6 7 1 1 5 1 3 7 5

式17: "E" Subscript, 2 , Baseline equals "B" Subscript, 2 , Baseline

equals

式18: "P" Subscript, 1 , Baseline equals "A" Subscript, 1 , Baseline

equals

3.5 2 6 7 1 1 5 1 3 7 5

式19: "P" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline minus "A" Subscript, "P" , Baseline

equals

1.8 5 4 1 0 1 9 6 6 2 5

式20: "m" Subscript, 1 , Baseline equals tangent "A" Subscript, "B" "C" , Baseline

equals

1.3 7 6 3 8 1 9 2 0 4 7

式21: "m" Subscript, 2 , Baseline equals tangent left parenthesis, 2 "B" Subscript, "A" "E" , Baseline minus 90 , right parenthesis

equals

negative 0.3 2 4 9 1 9 6 9 6 2 3 3

式22: "f" left parenthesis, "x" , right parenthesis equals "m" Subscript, 1 , Baseline "x"

式23: "g" left parenthesis, "x" , right parenthesis equals "m" Subscript, 2 , Baseline left parenthesis, "x" minus "P" Subscript, 1 , Baseline , right parenthesis plus "P" Subscript, 2 , Baseline

式24: "f" left parenthesis, "D" Subscript, 1 , Baseline , right parenthesis tilde "g" left parenthesis, "D" Subscript, 1 , Baseline , right parenthesis

式25: "D" Subscript, 2 , Baseline equals "m" Subscript, 2 , Baseline left parenthesis, "D" Subscript, 1 , Baseline minus "P" Subscript, 1 , Baseline , right parenthesis plus "P" Subscript, 2 , Baseline

equals

2.4 2 7 0 5 0 9 8 3 1 2

式26: "g" left parenthesis, "C" Subscript, 1 , Baseline , right parenthesis tilde "C" Subscript, 2 , Baseline

式27: "C" Subscript, 2 , Baseline equals "B" Subscript, 2 , Baseline

equals

Graphs

式29: polygon left parenthesis, "A" , "E" , right parenthesis

式30: polygon left parenthesis, "D" , "C" , right parenthesis

式31: polygon left parenthesis, "A" , "B" , "C" , right parenthesis

Points

提供：