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.

i used to know how to do this in 7th but i forget easily

step-by-step explanation:

step-by-step explanation:

1. the cylinder is a. 54

2.   a.108 /