whocares1234
24.02.2020 •
Mathematics
Two different triangles have side lengths of 13 and 16 units and a non included angle of 50 explain how the triangles are different
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Ответ:
see the attachments
Step-by-step explanation:
Actually, the given description fits 3 different triangles. They differ in the size of the included angle, hence the length of the remaining side. Possibilities are ...
included angle: 91.5°; third side: 20.9included angle: 59.5°; third side: 14.6included angle: 20.5°; third side: 6.0_____
When the non-included angle is opposite the long side, there is only one solution to the triangle. (See the first attachment.)
When the non-included angle is opposite the shorter of the given sides, there are generally two possible solutions. One of these has an acute angle opposite the long side; the other has an obtuse angle opposite the long side.
In any event, the Law of Sines is used to solve the triangle. First, the angle opposite the other given side is found; then the remaining angle and the side opposite it.
Suppose the given sides are "a" and "b", and the given angle is A. Then the Law of Sines tells you ...
B = arcsin(sin(A)·b/a) . . . . . possibly 2 values
From which ...
C = 180° -A -B
which allows finding ...
c = a·sin(C)/sin(A)
Ответ:
The correct option is 1.
Step-by-step explanation:
The height of the pole is 15 ft and the wire and the ground form a 42 angle.
Let the length of wire be x and the distance from the base of the pole to the spot where the wire touches the ground be y.
Therefore the length of wire is 22.4 ft.
Therefore the distance from the base of the pole to the spot where the wire touches the ground is 16.7 ft.
Option 1 is correct.