Question

Use the Law of Cosines to solve for the largest angle in the triangle with the given measures. Round answers to the nearest tenths.

A=22m b=24m c=26 m

Answer 1

Answer:

Angle C = 68.7°

Step-by-step explanation:

The largest angle es angle C ($\beta$)

$26^{2} =22^{2} +24^{2} -2(22)(24)cos\beta$

$676=484+576-1056cos\beta$

$676-1060=-1056cos\beta$

$\frac{-384}{-1056} =cos\beta$

$\beta =cos^{-1} (\frac{-384}{-1056} )=cos^{-1} (.36363)=68.676=68.7^{o}$