A contractor plans to install two slides for the children to play in a park . For the children below the age of 5years, she prefers to have a slide whose top is at a height of 1.5 metre . and is inclined at an angle of 30° to the ground , whereas for elder children , she. wants to have a steep slide at a height of 3metre , and inclined at an angle of 60° to the ground. what should be the length of the slide in each case?
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