Expression 25: "K" Subscript, 1 , Baseline equals "D" Subscript, 1 , Baseline plus StartFraction, "D" Subscript, 1 , Baseline Over StartRoot, 2 , EndRoot , EndFraction cosine left parenthesis, 90 minus StartFraction, 180 minus 45 Over 2 , EndFraction , right parenthesis equals 9.2 7 0 9 6 3 4 4 1 7 5K1=D1+D12cos90−180−452
equals=
9.2 7 0 9 6 3 4 4 1 7 59.27096344175
25
Expression 26: "K" Subscript, 2 , Baseline equals StartFraction, "D" Subscript, 1 , Baseline Over StartRoot, 2 , EndRoot , EndFraction sine left parenthesis, 90 minus StartFraction, 180 minus 45 Over 2 , EndFraction , right parenthesis equals 1.5 1 7 4 0 9 2 5 9 2 7K2=D12sin90−180−452
equals=
1.5 1 7 4 0 9 2 5 9 2 71.51740925927
26
Graphs
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27
Expression 28: "y" less than 25 Has graph. To audio trace, press ALT+T.y<25
28
Hidden Label: "A" , "H" equals a list of points. 2 items Has graph. To audio trace, press ALT+T.A,H
Label
equals=
left parenthesis, 7 , 7 , right parenthesis7,7
left parenthesis, 7 , 0 , right parenthesis7,0
29
Expression 30: left parenthesis, "H" Subscript, 1 , Baseline , StartFraction, "t" 1 Over 3 StartRoot, 2 , EndRoot , EndFraction , right parenthesis Has graph.H1,t132
00
domain t Minimum:
less than or equal to "t" less than or equal to≤t≤
11
domain t Maximum:
30
Expression 31: polygon left parenthesis, "A" , "D" , "I" , "D" , "K" , "D" , "A" , "B" , "C" , right parenthesis Has graph.polygonA,D,I,D,K,D,A,B,C
31
Expression 32: left parenthesis, "H" Subscript, 1 , Baseline plus 1 third cos 45 , "H" Subscript, 2 , Baseline plus "t" 1 third sin 45 , right parenthesis Has graph.H1+13cos45,H2+t13sin45
00
domain t Minimum:
less than or equal to "t" less than or equal to≤t≤
11
domain t Maximum:
32
Expression 33: left parenthesis, "H" Subscript, 1 , Baseline plus "t" 1 third cos 45 , "H" Subscript, 2 , Baseline plus 1 third sin 45 , right parenthesis Has graph.H1+t13cos45,H2+13sin45
00
domain t Minimum:
less than or equal to "t" less than or equal to≤t≤
11
domain t Maximum:
33
Points
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34
46
powered by
powered by
A
B
C
D
H
I
K
ADI and ADK are Right Congruent Triangles
Proove :
Start black, StartFraction, "D" "I" Over "A" "H" , EndFraction equals StartFraction, "B" "C" Over "A" "B" plus "A" "C" , EndFraction End blackDIAH=BCAB+AC
