Question

yesterday, 2000 circular jellyfish, each of diameter 2 feet, were lying within a section of ocean floor that measured 120' by 360'. the jellyfish were not overlapping each other. what percent of that section of ocean floor did the jellyfish cover? express your answer to the nearest whole number

Answer 1

The area of one jellyfish is pi r squared or 3.14 x 1 squared (the diameter of the jellyfish is 2 feet so the radius is 1 foot) or essentially 3.14 square feet. 2000 x 3.14 = 6280 square feet. The area of the ocean floor is 120 x 360 feet or 43200 square feet. So 6280/43200 is equal to 0.15 or 15%