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Naily [24]
3 years ago
14

What is the value of r? Enter your answer in the box. Round your final answer to the nearest whole number. r = units A right tri

angle has a horizontal leg labeled 12 with its opposite angle labeled 67.4 degrees. The hypotenuse is labeled r.
Mathematics
2 answers:
Scrat [10]3 years ago
6 0
12 divided by sin(67.4) = 13
Alex17521 [72]3 years ago
5 0

Answer: 13 units

Step-by-step explanation:

Given: A right triangle has a horizontal leg =12 units

The opposite angle to the horizontal leg = 67.4 degrees

In trigonometry, the value of sine of an angle (x) in a right triangle is given by:-

\sin x=\frac{\text{side opposite to x}}{\text{Hypotenuse}}

Since, the hypotenuse is labeled as r.

Then , we have

\sin(67.4^{\circ})=\frac{12}{r}\\\\\Rightarrow\ r=\frac{12}{\sin (67.4^{\circ})}\\\\\Rightarrow r=\frac{12}{0.92321021711}\\\\\Rightarrow r=12.9981230467\approx13

Hence, the value of r = 13 units.

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