Question

which equation can be used to find the measure of angle ljk?
○ sin(x) = \frac{10}{15}
○ sin(x) = \frac{15}{10}
○ cos(x) = \frac{10}{15}
○ cos(x) = \frac{15}{10}

Explanation:

Step1: Identify right triangle parts

Right angle at L, hypotenuse KJ=15 in, angle x at J.

Step2: Determine adjacent side to x

Adjacent side to x (angle J) is JL=10 in.

Step3: Apply cosine ratio

cos(x)=adjacent/hypotenuse=10/15.

Answer:

C. cos(x) = 10/15