The distance around a circle is called the

With number 11 ( show how you got the answer)

The moats separating people from the animals are 5 m wide for lions and 4 m wide for the elephants. if the lion’s moat is 4 m deep, how deep should the elephants’ moat be?

Identify this conic section. x2 - y2 = 16 o line circle ellipse parabola hyperbola