Mathematics: Asurveyor measures the lengths of the sides of a triangular plot of land. what is the measure of the angle of the triangular plot at which the surveyor stands? approximate to the nearest degree. cos–1(0.75) = 41° cos–1(0.125) = 83° cos–1(0.15) = 89°

Asurveyor measures the lengths of the sides of a

Ответ:

rebekahlm

03.01.2022

Mathematics

Second option is correct.

Step-by-step explanation:

Since we have given that

a = 300 m

b = 250 m

c = 200 m

We need to find the measure of angle i.e. A

As we know the "Law of Cosine rules ":

$\cos A=\frac{b^2+c^2-a^c}{2bc}\\\\\cos A=\frac{250^2+200^2-300^2}{2\times 250\times 200}\\\\\cos A=\frac{12500}{100000}\\\\\cos A=0.125\\\\A=\cos^{-1}(0.125)\\\\A=82.81^\circ\\\\A\approx 83^\circ$

Hence, Second option is correct.

Asurveyor measures the lengths of the sides of a triangular plot of land. what is the measure of the

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Ответ:

simojo

09.06.2020

Mathematics

Epic :)

Step-by-step explanation:

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Asurveyor measures the lengths of the sides of a triangular plot of land. what is the measure of the angle of the triangular plot at which the surveyor stands? approximate to the nearest degree.
cos–1(0.75) = 41°
cos–1(0.125) = 83°
cos–1(0.15) = 89°

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