In ΔKLM, k = 1.8 inches, ∠M=27° and ∠K=116°. Find the length of l, to the nearest 10th of an inch.

Question

Mathematics

Mohammad Davidson

19 December, 21:16

In ΔKLM, k = 1.8 inches, ∠M=27° and ∠K=116°. Find the length of l, to the nearest 10th of an inch.

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Answers (2)

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Alberto Banks · Answer 1

Since total angle in a triangle is 180,

∠L = 180 - ∠K - ∠M

∠L = 180 - 116 - 27

∠L = 37°

Using sine law:

k/sinK = l/sinL

1.8/sin (116) = l/sin (37)

l = sin (37) * 1.8/sin (116)

l = 1.205245013

Bronson · Answer 2

1.2 inches

Step-by-step explanation:

Since total angle in a triangle is 180,

∠L = 180 - ∠K - ∠M

∠L = 180 - 116 - 27

∠L = 37°

Using sine law:

k/sinK = l/sinL

1.8/sin (116) = l/sin (37)

l = sin (37) * 1.8/sin (116)

l = 1.205245013