Very important part 2 ! Thank youuuuu !!!!!!!!!!
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Answer:
Step-by-step explanation:
By definition, an Isosceles triangle has two equal sides and its opposite angles are congruent.
Observe the figure attached, where the isosceles triangle is divided into two equal right triangles.
So, in this case you need to use the following Trigonometric Identity:
In this case, you can identify that:
Substituting values, and solving for "x", you get:
Therefore, the length of BC rounded to nearest tenth, is:
The given expression is: 
So, there are two terms in the expression
1)
2) -5
The constant term is -5.
The co-efficient of is 4.
So, there are two terms in the expression
1)
2) -5
The constant term is -5.
The co-efficient of