111km
the ratio is 1:15 so you do 7.4×15
I'll assume those are squares. We know D is an identity:
Dividing through by
That's A.
Dividing the original through by
Not quite B, wrong sign on tangent.
C has the wrong sign on cosine squared as well.
Identities: A & D
Answer:
Step-by-step explanation:
Hope this helps!