Comments on: Jessica plans to plant bulbs in a circular flower bed that has a raduius of 2 meters. If she plants 40 bulbs..? http://www.woodworkingplansguide.com/woodworking-plans-q-and-as/jessica-plans-to-plant-bulbs-in-a-circular-flower-bed-that-has-a-raduius-of-2-meters-if-she-plants-40-bulbs/ Mon, 31 Jan 2011 07:14:27 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: MoonRose http://www.woodworkingplansguide.com/woodworking-plans-q-and-as/jessica-plans-to-plant-bulbs-in-a-circular-flower-bed-that-has-a-raduius-of-2-meters-if-she-plants-40-bulbs/comment-page-1/#comment-996 MoonRose Wed, 10 Mar 2010 09:36:32 +0000 http://www.woodworkingplansguide.com/woodworking-plans-q-and-as/jessica-plans-to-plant-bulbs-in-a-circular-flower-bed-that-has-a-raduius-of-2-meters-if-she-plants-40-bulbs/#comment-996 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 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

]]> By: KY http://www.woodworkingplansguide.com/woodworking-plans-q-and-as/jessica-plans-to-plant-bulbs-in-a-circular-flower-bed-that-has-a-raduius-of-2-meters-if-she-plants-40-bulbs/comment-page-1/#comment-997 KY Wed, 10 Mar 2010 09:36:32 +0000 http://www.woodworkingplansguide.com/woodworking-plans-q-and-as/jessica-plans-to-plant-bulbs-in-a-circular-flower-bed-that-has-a-raduius-of-2-meters-if-she-plants-40-bulbs/#comment-997 It'll be the number of sq meters (the area) times 40 pi * (2)^2 * 40 = 160*pi = 503 bulbs It’ll be the number of sq meters (the area) times 40

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

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