Thursday

September 18, 2014

September 18, 2014

Posted by **Sara** on Tuesday, January 10, 2012 at 11:19pm.

- Math -
**Reiny**, Tuesday, January 10, 2012 at 11:39pmThe circle is the most efficient shape for a maximum area given some perimeter.

Here is why:

if circumf = 100

2πr = 100

r = 100/(2π) = 15.915

area = πr^2 = π(15.915)^2 = 795.77

if you had a square:

each side = 25

Area = 25x25 = 625 which is quite a bit less than the circle

Any other shape, e.g. an equilateral triangle, is less than the area of a circle.

- Math -
**Alicia**, Tuesday, January 10, 2012 at 11:56pmCircle it has a larger area by 3 more

**Answer this Question**

**Related Questions**

Grade 11 Math - A rectangular dog run is to be enclosed by a fence and then ...

Geometery - How do I solve this? On my assignment it says find the area inside ...

Math - 1. A gardener has 140 feet of fencing to fence in a rectangular vegetable...

Geometry - A square fence with perimeter 24 ft is reshaped into a circle using ...

geometry - I need to find the area of the shaded portion of a circle with a ...

algebra 1 - A high school wrestling mat must be a square with 38-foot sides and ...

math - A farmer has 1000ft of fence and wishes to enclose the largest possible ...

Math - I need to find the area of a shaded part. it is a square with a circle ...

8th grade math - circle A has a raduis that is twice the length og the raduis of...

algebra - Mike's family wants to build a rectangular fenced backyard area for ...