woodfordmaliky
07.11.2019 •
Mathematics
Linear equations with fractions
x+3 x+7
- =2
2 6
Solved
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Ответ:
Ответ:
a=61.39°
Step-by-step explanation:
we know that
In the right triangle DEF
The tangent of angle a is equal to divide the opposite side to angle a (FE) by the adjacent side to angle a (FD)
tan(a)=FE/FD
substitute the given values
tan(a)=55/30
a=arctan(55/30)
a=61.39°