Law of sines: what is the approximate perimeter of the triangle? use the law of sines to find the answer. a.  4.6 unitsb. 5.7 units c. 6.9 units d. 9.2 units

Option D. 9.2 units.

Step-by-step explanation:

In the ΔJKL ⇒ ∠J + ∠K + ∠L = 180

                      ∠J + 67 + 74 = 180° ⇒ ∠J = 39°

In the given triangle JKL we apply law of sines

= =

Now we take  =

=

JL =

= 3.36 units

Now =

=

JK =

    =

    = 3.51 units

So perimeter of the triangle = 3.36 + 3.51 + 2.3 = 9.15 units ≈ 9.2 units.

Option D is the answer.