First of all it is useful to say the notation in a triangle:
Opposite at the side a the angle is called A,
Opposite at the side b the angle is called B,
Opposite at the side c the angle is called C.
So, the Sinus Law can be written:
asinA=bsinB=csinC.
This Law is useful in all the cases SSA and NOT in the case SAS, in which the Law of Cosinus has to be used.
E.G.: we know a,b,A, then:
sinB=sinA⋅ba and so B is known;
C=180°−A−B and so C is known;
c=sinCsinB⋅b
If this is not to professional I don't know what this I'm in 9th grade and kinda have been exposed to this in books
<span><u>Answer
</u>
18 feet and 4.5 inches
<u>Explanation
</u>
You are going to use the concept of similar triangle.
∆CED≡∆CBA
This is because they share the angle at C and also they both have an angle of 90o.
Let EC = X, then BE = 2.5X. So, BE = (X + 2.5X) = 3.5X
The scale factor EC/BC=x/3.5x=2/7
EC/BC=ED/BA=2/7
BA=7/2×63 in
The height of the tree = 220.5 inches. This is equal 18 feet and 4.5 inches.
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Answer:
is there a picture to this problem?
Answer:
The straight-line distance (in paces) from the tree to the treasure is 80.62 paces
Step-by-step explanation:
Given:
Distance walked towards the north = 70 Paces
Distance walked towards the East = 40 Paces
To Find:
The straight line distance from the tree to the treasure =?
Solution:
We we track the trail we can find a right triangle formed where the two sides are 70 pace and 40 pace each. The straight line distance is the hypotenuse of the triangle(Refer the figure below
Now we can find the length of the hypotenuse by Pythagorean theorem
where b and c are the sides of the triangle
and a is the hypotenuse
a = 80.62
now, take a look at the picture below, so for 2) and 3) is the vertex of this quadratic equation, 2) is the y-coordinate and 3) the x-coordinate.