Missing Angle ACB = 105°

表达式11: "A" Subscript, 2 , Baseline equals StartRoot, 0 , EndRoot

表达式12: "B" Subscript, 1 , Baseline equals "A" Subscript, "B" , Baseline cosine 30

表达式13: "B" Subscript, 2 , Baseline equals "A" Subscript, "B" , Baseline sine 30

表达式14: "C" Subscript, 1 , Baseline equals 2 "D" Subscript, 1 , Baseline

表达式15: "C" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline

表达式16: tangent to the negative 1st power StartFraction, "B" Subscript, 1 , Baseline minus "A" Subscript, 1 , Baseline Over "B" Subscript, 2 , Baseline , EndFraction minus tangent to the negative 1st power StartFraction, "B" Subscript, 1 , Baseline minus "D" Subscript, 1 , Baseline Over "B" Subscript, 2 , Baseline , EndFraction equals "A" Subscript, "B" "D" , Baseline

表达式17: "D" Subscript, 1 , Baseline equals "B" Subscript, 1 , Baseline minus "B" Subscript, 2 , Baseline tangent left parenthesis, tan to the negative 1st power StartFraction, "B" Subscript, 1 , Baseline minus "A" Subscript, 1 , Baseline Over "B" Subscript, 2 , Baseline , EndFraction minus "A" Subscript, "B" "D" , Baseline , right parenthesis

表达式18: "D" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline

Graphs

表达式20: "y" less than 25

表达式21: polygon left parenthesis, "A" , "B" , "D" , "B" , "C" , right parenthesis

Points

技术支持