Answer:
tan J
Step-by-step explanation:
From the given trinagle;
JK = Adjacent = 10
KL = Opposite
JL = Hypotenuse
m<J = 20degrees
Using the SOH CAH TOA identity
tan theta = opp/adj
tan m<J = KL/JK
tan 20 = KL/10
KL = 10tan20
Hence tan J can be used to determine KL
