Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • On a square handkerchief, nine circular designs each of radius 7 cm are made (see Fig.). Find the area of the remaining portion of the handkerchief.

11. On a square handkerchief, nine circular designs each of radius 7 cm are made (see Fig.). Find the area of the remaining portion of the handkerchief.

Answers (1)

best_answer

Since one side of the square has 3 circles, thus the side of the square is 42 cm.

Area of the square  =\ a^2\ =\ 42^2\ =\ 1764\ cm^2

And, area of a circle =\ \pi r^2\ =\ \frac{22}{7}\times 7^2

=\ 154\ cm^2                                          

Hence the area of the remaining portion =\ 1764\ -\ 9\times 154

=\ 378\ cm^2

                                       

Posted by

Devendra Khairwa

View full answer

Similar Questions

Trending Articles/News

anam-khan

CBSE 10th final date sheet 2026 out; exams till March 10, minor revisions after student protest
anam-khan

CBSE Board Exam 2026: Two exams for Class 10 ‘exhausting’ for teachers, cause more anxiety for students
anam-khan

Board Exams 2026: NCERT PARAKH forms expert committee to standardise Class 10, 12 certificates

Latest Question