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m_a_m_a [10]
3 years ago
6

Please ehlp delta math with explanation please

Mathematics
1 answer:
statuscvo [17]3 years ago
3 0

Answer:

134.3

Step-by-step explanation:

In \triangle{WXZ}, a right triangle, look at sides XW and XZ.

\frac{XW}{XZ}=\frac{\text{adjacent}}{\text{hypotenuse}}=\cos{82^\circ}\\\\XW=(XZ)\cos{82^\circ}

You now need to find XW.

In \triangle{XYZ}, the measure of angle XZY (the one at the top) is 180 - (82 + 67) = 31 degrees.

Using the Law of Sines in triangle XYZ,

\frac{XZ}{\sin{67^\circ}}=\frac{540}{\sin{31^\circ}}\\\\XZ=\frac{540 \sin{67^\circ}}{\sin{31^\circ}}

Put that into the equation for XW above...

XW=\frac{540\sin{67^\circ}\cos{82^\circ}}{\sin{31^\circ}}

A calculator shows that this is approximately 134.3

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