Step-by-step explanation:

Octagons have 8 sides. If each side is 5 feet then the perimeter is 40 feet. You add up the sides.
It’s B did this before hope this helps
Answer:
Statement: Reason:
ΔNQM and ΔNQP are right triangle Definition of a right triangle
SinM = h/p and SinP = h/m Definition of sine ratio
p sin M = m sin P Substitution property of equality
p sin M / pm = msinP / pm Division property of equality.