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Annette [7]
3 years ago
15

If j is 21 inches, k is 12 inches, and ∠M measures 62°, then find m using the Law of Cosines. Round your answer to the nearest t

enth.

Mathematics
2 answers:
Naily [24]3 years ago
7 0

Answer:

m=18.7\ in

Step-by-step explanation:

see the attached figure to better understand the problem

Applying the law of cosines

m^2=j^2+k^2-2(j)(k)cos(M)

substitute the given values

m^2=21^2+12^2-2(21)(12)cos(62^o)

m^2=348.39\\m=18.7\ in

sergiy2304 [10]3 years ago
5 0

Answer:

<h2>m=18.7 in</h2>

Step-by-step explanation:

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