allysoftball6226
31.05.2020 •
Mathematics
Your friend Noah does not understand why his answers were marked wrong on an exam.
Explain why you think Noah answered as he did. What is he
misunderstanding?
When asked if the sets { rose, daisy, sunflower, orchid } and
sunflower, rose, daisy, orchid } are equal, Noah responded
"no"
Solved
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Ответ:
Solution given:
CD=18m
In ∆ ACD
Tan 35=opposite/adjacent
Tan 35=CD/AC
AC=18/Tan35
AC=25.7m
again
In ∆ BCD
Tan 60=opposite/adjacent
Tan 60=CD/BC
BC=18/tan60
BC=10.4
we have
AC=AB+BC
AB=25.7-10.4
AB=15.3
Distance between A and B point is 15.3 metre