Answer:
Step-by-step explanation:
Let
x-------> the length side of the rectangle
y------> the width side of the rectangle
we know that
---> equation A
---> equation B (given problem)
substitute equation B in equation A
so
the coordinate of the top-left vertex of the rectangle is equal to
angle B = 78.46°
Use the cosine ratio
Hope this helps
Answer: a. f(n+1) = f(n) + 20
can u translate in english