Math, asked by ASHIISH5415, 11 months ago

If the diameter of a protector is21 cm ,then find its perimeter

Answers

Answered by harshsingh26092002

0

Protector is semicircular

Diameter of the protector=21cm

Radius of protector is 21/2cm

Then perimeter of semicircle is = πr+diameter

= (22/7×21/3)+21

= (22+1)+21cm

= 23+21cm

= 44cm

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