In triangle abc, ab = 12 inches, ac = 18 inches and the area of the triangle is 107.737 square inches. what is the measure of angle a? a) 1.5° b) 43° c) 86° d) 172°

(C)

Step-by-step explanation:

It is given that In triangle ABC, AB = 12 inches, AC = 18 inches and the area of the triangle is 107.737 square inches.

Now, using the formula where a and b are the two sides of the triangle and the C is the included angle, therefore

We have AB=12 in and AC=18 in and area= 107.737 square inches.

Substituting these values in the above equation, we get

≈

Thus, option (C) is correct.

$30.32

step-by-step explanation:

65.00*.12=2.80

65.00-2.80=57.20

57.20*1.06=60.632

60.632/2=30.316

the graph is negative for all real values of x where   -6 < x < -2.

step-by-step explanation:

this refers to the values of f(x) in the area below the x-axis.