Respuesta :

mixter17

Hello!

The answer is:

The second option,

[tex]SU=13.02=13[/tex]

Why?

We are working with a right triangle, it means that we can use the following trigonometric property:

[tex]Tan(\alpha)=\frac{Opposite}{Adjacent}[/tex]

Which applied to our problem, will be:

[tex]Tan(\alpha)=\frac{TU}{SU}[/tex]

We are given:

m∠S, equal to 21°

The side TU (opposite) equal to 5 units.

So, substituting and calculating we have:

[tex]SU=\frac{TU}{Tan(\alpha)}[/tex]

[tex]SU=\frac{5units}{Tan(21\°)}[/tex]

[tex]SU=13.02=13[/tex]

Hence, the answer is the second option

[tex]SU=13.02=13[/tex]

Have a nice day!

kudzordzifrancis

Answer:

13.0

Step-by-step explanation:

The given angle is m<S=21.

The given side length UT=5 units.

This side length is opposite to the given angle.

Since we want to find SU, the adjacent side; we use the tangent ratio to obtain;

[tex]\tan 21\degree=\frac{opposite}{adjacent}[/tex]

[tex]\tan 21\degree=\frac{5}{SU}[/tex]

This implies that;

[tex]SU=\frac{5}{\tan 21\degree}[/tex]

Therefore SU=13.025

The nearest tenth

SU=13.0

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