A hotel wants to put a fence around a circular spa. The radius of the spa is 5/√2-1 feet. If the fence is built along the immediate edge of the spa, what is the perimeter of the fence? (Recall that the

perimeter of a circle is 2πr, where r is the radius of the circle.)

Question

Physics

Spencer Carr

1 January, 04:31

A hotel wants to put a fence around a circular spa. The radius of the spa is 5/√2-1 feet. If the fence is built along the immediate edge of the spa, what is the perimeter of the fence? (Recall that the

perimeter of a circle is 2πr, where r is the radius of the circle.)

+1

Answers (1)

Know the Answer?

Samir Newton · Answer 1

It is important to look at all the information's that are given in the question very closely. Let us write them write first.

Radius of the spa = 5/√2-1 feet

Now

Perimeter of the circle = 2πr

= 2 π (5/√2-1)

= π (5 / (√2-1) * (√2+1) / (√2+1)

= 2π (5 / (√2+1)) / (2-1)

= 10π (√2+1)

I hope that the procedure is clear enough for you to understand.

A hotel wants to put a fence around a circular spa. The radius of the spa is 5/√2-1 feet. If the fence is built along the immediate edge of the spa, what is the perimeter of the fence? (Recall that theperimeter of a circle is 2πr, where r is the radius of the circle.)

A hotel wants to put a fence around a circular spa. The radius of the spa is 5/√2-1 feet. If the fence is built along the immediate edge of the spa, what is the perimeter of the fence? (Recall that the

perimeter of a circle is 2πr, where r is the radius of the circle.)