Selina has a 9 meter by 12 meter lawn that she wants to water. She has two sprinklers, each of which can water grass within an 8.4meter radius in a 90 arc. Selina wants to set up the two sprinklers so that they are on corners of the lawn. She would like for the sprinklers to water as much of the lawn as possible, because she will have to manually water the part of the lawn that is not covered by the sprinklers. Selina considers two different strategies for placing the sprinklers. One strategy is to put the sprinklers at opposite ends of a 12-meter side of the lawn. The other is to put the sprinklers at opposite corners of the lawn. (See the figures below.) Which strategy appears to be best? 12m 12m

Elementary Geometry For College Students, 7e
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ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
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PCPS Desktop
S Module 8 Part 1| Schoology
Module 8 Part 1- Circles
A student.desmos.com/activitybuilder/student/6076d4cdd17ea1a2a45b0588#screenldx
Selina has a 9 meter by 12 meter lawn that she wants to water. She has two sprinklers, each of which can water grass within an 8.4-meter
radius in a 90° arc. Selina wants to set up the two sprinklers so that they are on corners of the lawn. She would like for the sprinklers to water
as much of the lawn as possible, because she will have to manually water the part of the lawn that is not covered by the sprinklers.
Selina considers two different strategies for placing the sprinklers. One strategy is to put the sprinklers at opposite ends of a 12-meter side of
the lawn. The other is to put the sprinklers at opposite corners of the lawn. (See the figures below.) Which strategy appears to be best?
12m
12 m
Transcribed Image Text:PCPS Desktop S Module 8 Part 1| Schoology Module 8 Part 1- Circles A student.desmos.com/activitybuilder/student/6076d4cdd17ea1a2a45b0588#screenldx Selina has a 9 meter by 12 meter lawn that she wants to water. She has two sprinklers, each of which can water grass within an 8.4-meter radius in a 90° arc. Selina wants to set up the two sprinklers so that they are on corners of the lawn. She would like for the sprinklers to water as much of the lawn as possible, because she will have to manually water the part of the lawn that is not covered by the sprinklers. Selina considers two different strategies for placing the sprinklers. One strategy is to put the sprinklers at opposite ends of a 12-meter side of the lawn. The other is to put the sprinklers at opposite corners of the lawn. (See the figures below.) Which strategy appears to be best? 12m 12 m
em 4
setting the sprinklers at opposite ends of the lawn minimizes
overlap, covers more area and is the best strategy
setting the sprinklers at opposite corners of the lawn
minimizes overlap, covers more area and is the best strategy
setting the sprinklers at opposite corners of the lawn
maximizes overlap, covers less area and is the best strategy
setting the sprinklers at opposite corners of the lawn
maximizes overlap, covers less area and is the best strategy
Transcribed Image Text:em 4 setting the sprinklers at opposite ends of the lawn minimizes overlap, covers more area and is the best strategy setting the sprinklers at opposite corners of the lawn minimizes overlap, covers more area and is the best strategy setting the sprinklers at opposite corners of the lawn maximizes overlap, covers less area and is the best strategy setting the sprinklers at opposite corners of the lawn maximizes overlap, covers less area and is the best strategy
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