Question

if the perimeter of a semi-circular protracter is 36cm. find its diameter (use π = 22/7 ) ​

Answer 1

Answer:

11.46cm

Step-by-step explanation:

perimeter of semi circle is =Πr

from given

Πr=36=(22/7)r

36×7/22=11.46

Answer 2

Answer:

perimeter of semicircle=πr

given perimeter=36cm

π×r=36

22/7×r=36

r=36×7/22

r=11.45cm

the diameter of the semicircle is=11.45×2

=22.9 cm

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