Question

what is the circumference of a semi circle if its radius is 14cm​

Answer 1

Answer:

(Take π=227) So, Circumference of circular disk is 88 cm.

Step-by-step explanation:

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Answer 2

Answer:

Radius of a semicircle, r=14cm

Perimeter of a semicircle, P=(π+2)r units.

Therefore, P= (22/7+2)*14.

= (22+14/7)*14 = 36/7*14= 72

Perimeter of the semicircle = 72 cm.

Area of a semicircle, A= πr^2/2 sq. units

Therefore, A= 22/7* 14*14/2 = 308 cm^2.