Answer :
Given,
Perimeter of semi-circle = 72m
Width of path around it = 3.5m
Perimeter of semi-circle = πr+2r
= 
r +2r = 72
= 22r+14r = 72×7
r = 
= 14cm
Radius including the width of path(R) = r+3.5 = 14+3.5 = 17.5m
So, area of path = 
= 173.25m2
Rate this question :
How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
How to Revise Chemistry45 mins
Nelson Mandela : Long Walk to Freedom42 mins
How to Revise Chemistry45 minsNelson Mandela : Long Walk to Freedom42 minsTry our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
view all courses
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
