Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • Fig. depicts a racing track whose left and right ends are semicircular. The distance between the two inner parallel line segments is 60 m and they are each 106 m long. If the track is 10 m wide, find : (i) the distance around the track along its

8.  Fig. depicts a racing track whose left and right ends are semicircular.

                       

The distance between the two inner parallel line segments is 60 m and they are each 106 m long. If the track is 10 m wide, find :

  (i) the distance around the track along its inner edge

Answers (1)

best_answer

The distance around the track is Length of two straight lines +  Length of two arcs.

Length of the arc is  - 

                                  =\ \frac{1}{2}\times 2\pi r

                                 =\ \frac{1}{2}\times 2\pi \times 30\ =\ 30\pi\ m

Thus the length of the inner track is :      

                                                      =\ 106\ +\ 30\pi\ +\ 106\ +\ 30\pi

                                                     =\ 212\ +\ 60\pi

                                                    =\ \frac{2804}{7}\ m

Posted by

Devendra Khairwa

View full answer

Similar Questions

Trending Articles/News

anam-khan

CBSE Board Exam 2025: Class 10, 12 practical exam dates out at cbse.gov.in; passing marks
anam-khan

CBSE urges schools to complete 100% registration of Class 9, 11 students by October 16; late fee for delays

Latest Question