Area Black = ?

수식 21: "y" equals StartRoot, 5 squared minus left parenthesis, "x" minus 15 , right parenthesis squared , EndRoot plus 5

수식 22: StartRoot, 5 squared minus left parenthesis, "x" minus 15 , right parenthesis squared , EndRoot equals "m" Subscript, 1 , Baseline "x" minus 5

수식 23: "a" "x" squared plus "b" "x" plus "c" equals 0

수식 24: "a" equals "m" squared plus 1

equals

1.2 5

수식 25: "b" equals negative 30 minus 10 "m" Subscript, 1 , Baseline

equals

negative 35

수식 26: "c" equals StartAbsoluteValue, 225 , EndAbsoluteValue

equals

225

수식 27: "P" Subscript, 1 , Baseline equals StartFraction, negative "b" plus StartRoot, "b" squared minus 4 "a" "c" , EndRoot Over 2 "a" , EndFraction

equals

수식 28: "P" Subscript, 2 , Baseline equals "m" Subscript, 1 , Baseline "P" Subscript, 1 , Baseline

equals

수식 29: "O" Subscript, 1 , Baseline equals StartAbsoluteValue, 10 , EndAbsoluteValue

equals

수식 30: "O" Subscript, 2 , Baseline equals StartAbsoluteValue, 5 , EndAbsoluteValue

equals

수식 31: "Q" Subscript, 1 , Baseline equals StartAbsoluteValue, 15 , EndAbsoluteValue

equals

수식 32: "Q" Subscript, 2 , Baseline equals StartAbsoluteValue, 5 , EndAbsoluteValue

equals

수식 33: "T" Subscript, 1 , Baseline equals StartAbsoluteValue, 20 , EndAbsoluteValue

equals

수식 34: "T" Subscript, 2 , Baseline equals StartAbsoluteValue, 5 , EndAbsoluteValue

equals

Graphs

수식 36: polygon left parenthesis, "Q" , "T" , right parenthesis

수식 37: polygon left parenthesis, "A" , "C" , right parenthesis

수식 38: polygon left parenthesis, "O" , "P" , "Q" , right parenthesis

수식 39: polygon left parenthesis, "A" , "B" , "C" , "D" , right parenthesis

수식 40: left parenthesis, 5 plus 5cos "t" , 5 plus 5sin "t" , right parenthesis

정의역 t 최솟값:

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

정의역 t 최댓값: 360

수식 41: left parenthesis, 15 plus 5cos "t" , 5 plus 5sin "t" , right parenthesis

정의역 t 최솟값:

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

정의역 t 최댓값: 360

Points