Woodworking Plans Review

2 Responses to “Jessica plans to plant bulbs in a circular flower bed that has a raduius of 2 meters. If she plants 40 bulbs..?”

1. 
   MoonRose Says:
   10. March 2010 at 9:36 am

   The formula for the area of a circle is πr^2, where r is the radius. The radius of the flowerbed is 2 meters, so the flowerbed has an area of π(2)^2 = 4π = about 12.57 square meters. She plants 40 bulbs per square meters, so she should buy 12.57*40 = 502.8 or (since you can’t buy part of a bulb) about 503 bulbs.

   ANSWER: 503 bulbs

2. 
   KY Says:
   10. March 2010 at 9:36 am

   It’ll be the number of sq meters (the area) times 40

   pi * (2)^2 * 40 = 160*pi = 503 bulbs

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