Question

The answer in my book is 96.0

Answer 1

Answer:

length of rctangle = 36-10.5= 25.5

breadth = 21

perimeter= 51

radius = 10.5

cirumfrence = 2×22/7×10.5.

calculate it and then add 51

hope it will satisfy u

Answer 2

since in the figure ,

there are 2 semi circles or we can say one circle with radius 21/2 cm

its perimeter = 2 ×22/7×21/2

....................=66 cm

now ,

remaining is the 2 opposite sides of rectangle I,e

....................2( 36 _ 21) as we calculated the perimeter of semi circles ...

2×15

=30 cm

NOW perimeter OF FIGURE = (66 + 30 )cm= 96 cm