myleswatts1
12.08.2020 •
Mathematics
Find the value of each variable.
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Ответ:
Step-by-step explanation:
For bTo find the value of a we must first find the value of b
To find b we use sine
sin ∅ = opposite / hypotenuse
From the question
b is the opposite
The hypotenuse is 10
We have
sin 60 = b / 10
b = 10 sin 60
b = 5√3For aTo find a we use sine
sin 30 = b/a
b = 5√3
That's
sin 30 = 5√3/a
a = 5√3 / sin 30
a = 10√3For cSince we have both a and b we can find c using either a or b
To find c using a we use cosine
cos 30 = c / a
a = 10√3
c = a cos 30
c = 10√3 cos 30
c = 15For dTo find d we use cosine
cos 60 = d / 10
d = 10 cos 60
d = 5Hope this helps you
Ответ:
See Explanation
Step-by-step explanation:
The question is incomplete has the figure of the triangle is not given.
However, the following steps will guide you.
To solve this question;
you need the lengths of the threes sides of the triangular fields
Represent these lengths with a, b and c
Next;
Sum these lengths together;
This gives the required length of fencing
Take for instance;
The required length of fence would be
Apply these steps and you'll get your answer