Question

find the length of the semicircular if radius 11cm
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Answer 1

Answer:

34.57142857142857

Step-by-step explanation:

Find Perimetre First for whole circle and divide it by 2

2*22/7 *11 Is the area for whole circle equal to 69.14285714285714

Divide By 2 to get semicircular lenght equal to 34.57142857142857

Answer 2

Answer:

34.57 cm

Step-by-step explanation:

r = 11 cm

Circumference (perimeter) of circle = 2*22/7 * r

Length of semi circle = 22/7* r

22/7 *11 = 34.57 cm

Note :- If Diameter is added then length

= 34.57 cm +22cm = 56.57 cm