Direction(Qs. 49 to 51): Chinkuis making a design using coloured papers. He cut out a square of side 10 cm asshown in fig. A. Then he cut out small squares of side 1 cm from various sectionsof the large square as given in fig. B. Look at the figures and answer thequestions that follow: What is the perimeter of fig. A?

• A. 40cm        
• B. 50cm
• C. 60cm     
• D. 70cm