In ΔIJK, k = 3.6 inches, i = 1.3 inches and ∠J=13°. Find the length of j, to the nearest 10th of an inch.

5.6 inches

Step-by-step explanation:

let c = length of 'j'

I used the Law of Cosines:   = + -2ab· cosC

= (1.3)^2 + (3.6)^2 - 2(1.3)(3.6) x 0.97

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it