Answered

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find the indicated length or angle measure (to the nearest tenth).

Find The Indicated Length Or Angle Measure To The Nearest Tenth class=

Sagot :

SOLUTION

Given the question in the image, the following are the solution steps to answer the question.

STEP 1: Explain the formula to use

Using the cosine rule which states that:

[tex]z^2=x^2+y^2-2xy\cos Z[/tex]

STEP 2: Write the given sides

[tex]x=4,y=6,Z=41^{\circ},z=?[/tex]

STEP 3: Find the value of z

[tex]\begin{gathered} By\text{ substitution,} \\ z^2=4^2+6^2-2(4)(6)\cos41 \\ z^2=16+36-48cos41 \\ z^2=52-36.22605985 \\ z^2=15.77394015 \\ z=\sqrt{15.77394015} \\ z=3.971641997 \\ z\approx4.0 \end{gathered}[/tex]

Hence, the indicated length is 4.0

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