The tangent of an angle is not which of the following?
2 answers:
Answer: Option 'B' is correct.
Step-by-step explanation:
Since we have given that
The tangent of an angle is defined as the ratio of opposite side to adjacent side.
Mathematically, it is expressed as
where, Perpendicular is the opposite side of theta Ф.
and base is the adjacent side of theta Ф.
So, it is ratio and ratio is a type of fraction and it is read as opposite overt adjacent.
But it is not a proportion.
Hence, Option 'B' is correct.
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The length of the brace required is 4.3m
What is sine rule?
In a ΔABC a, b and c are the sides and A, B and C are angles then,
We can find the length, l as shown below:
Let AB=3m, BC=2m and AC=l
Let ∠A=25°
So, in ΔABC
∠C=39.34°
∠A+∠B+∠C=180°
∠B=180°-25°-39.34°
∠B=115.66°
l=4.2659
Rounding to nearest tenth of meter.
l=4.3m
Hence, the length of the brace required is 4.3m
Learn more about Sine Rule here:
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