Me for find each measurement indicated. round your answers to the nearest tenth.

AB=18km

Step-by-step explanation:

In any triangle in 2 dimensions our interior angles should equal to 180°.

We know 2 of the three interior angles, since we know it must sum up to 180° let's subtract these known interior angles to obtain:

180°-79°-68°=33°

Furthermore, since this triangle is not a right triangle we cannot use the Pythagorean equation.  Therefore let's use the law of sines:

Where A is angle A=33°, B = 68°, C=79°, a = CB, b=AC, c=AB.

Since we want to find side AB and we know A, a, and C we only use 2 of those parts of the law of sines and so:

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a

idk

step-by-step explanation:

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