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Agata
[3.3K]
3 years ago
10
Q) 18 & 20 please answer.
Mathematics
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1
answer:
Setler
[38]
3 years ago
5
0
18. S=r^2-t^2
S+t^2=r^2
r=sqrt(S+t^2)
20. Tan 18=x/12
x=12×Tan 18
x=3.899036355
x=3.90
I hope this helps.
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