Answer:
A
Step-by-step explanation:
Using the Sine rule in Δ ABC
=
, substitute values
=
( cross- multiply )
BC sin38° = 3 sin66° ( divide both sides by sin38° )
BC =
→ A
Y equals 4 hope i could help
You’re gonna “distribute” the 7 into the parentheses by multiplying the 7 by the numbers inside the parentheses