表达式26: 0 less than or equal to "y" less than or equal to left brace, theta Subscript, 0 , Baseline less than "x" : negative "x" plus "b" , right brace0≤y≤θ0<x:−x+b
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表达式27: theta Subscript, 0 , Baseline equals StartFraction, "p" plus "b" Over 2 , EndFractionθ0=p+b2
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Blue Triangle
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表达式29: 0 less than or equal to "y" less than or equal to left brace, 0 less than or equal to "x" less than or equal to "b" : negative "x" plus "p" , right brace0≤y≤0≤x≤b:−x+p
29
Rectangle
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表达式31: left parenthesis, "p" minus "p" "t" , "p" "t" , right parenthesisp−pt,pt
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表达式32: left parenthesis, "p" plus StartFraction, "b" minus "p" Over 2 , EndFraction "t" , StartFraction, "b" minus "p" Over 2 , EndFraction "t" , right parenthesisp+b−p2t,b−p2t
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表达式33: left parenthesis, StartFraction, "b" minus "p" Over 2 , EndFraction "t" , "p" plus StartFraction, "b" minus "p" Over 2 , EndFraction "t" , right parenthesisb−p2t,p+b−p2t
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Larger Triangle
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表达式35: left parenthesis, 0 , "b" "t" , right parenthesis0,bt
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表达式36: left parenthesis, "b" "t" , 0 , right parenthesisbt,0
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表达式37: left parenthesis, "b" minus "b" "t" , "b" "t" , right parenthesisb−bt,bt
表达式40: "T" Subscript, "b" , Baseline left parenthesis, "x" , right parenthesis equals StartFraction, "x" squared Over 2 , EndFractionTbx=x22
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表达式41: "T" Subscript, "g" , Baseline left parenthesis, "x" , right parenthesis equals StartFraction, left parenthesis, "b" minus "x" , right parenthesis squared Over 4 , EndFractionTgx=b−x24
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表达式42: "R" left parenthesis, "x" , right parenthesis equals "T" Subscript, "S" , Baseline minus "T" Subscript, "b" , Baseline left parenthesis, "x" , right parenthesis minus 2 "T" Subscript, "g" , Baseline left parenthesis, "x" , right parenthesisRx=TS−Tbx−2Tgx
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Vector between Points
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表达式44: left parenthesis, "p" , "f" left parenthesis, "p" , right parenthesis "t" , right parenthesisp,fpt
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Tangent and Parabola
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表达式46: left parenthesis, "p" plus "t" , "f" left parenthesis, "p" , right parenthesis plus "g" left parenthesis, "p" , right parenthesis "t" left brace, "p" equals StartFraction, "b" Over 2 , EndFraction , right brace , right parenthesisp+t,fp+gptp=b2
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表达式47: left parenthesis, StartFraction, "b" Over 2 , EndFraction , "f" left parenthesis, StartFraction, "b" Over 2 , EndFraction , right parenthesis plus "b" "t" left brace, "p" equals StartFraction, "b" Over 2 , EndFraction , right brace , right parenthesisb2,fb2+btp=b2
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表达式48: "f" left parenthesis, "x" , right parenthesis equals left brace, 0 less than or equal to "x" less than or equal to "b" : "R" left parenthesis, "x" , right parenthesis , right bracefx=0≤x≤b:Rx
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Height
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表达式50: "s" Subscript, 1 , Baseline equals "p" plus StartFraction, "b" minus "p" Over 2 , EndFractions1=p+b−p2
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表达式51: left parenthesis, "s" Subscript, 1 , Baseline , left parenthesis, "s" Subscript, 1 , Baseline minus "p" , right parenthesis "t" , right parenthesiss1,s1−pt
