Question

please let me know how to solve it​

Answer 1

Answer:

Option (2 ) 56.6 m is correct

Step-by-step explanation:

Perimeter of the rectangle=2*(10+20)=60 m

Now each arc at corner is as colored part in the attached figure

Length of arc = circumference of circle

=2πr=2*(22/7)*2=88/7=12.571 m

Now the length removed at 4 corners=4(2+2)=16 m

Thus total perimeter

=60+12.571-16

=56.571 m ≈  56.6 m

Thus Option (2 ) 56.6 m is correct

Answer 2

☺ａｎｓｗｅｒ:

perimeter = 56.6 m