karissawilson78720 karissawilson78720

01-06-2021
Mathematics

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Either enter an exact answer in terms of π or use 3.14, for π and enter your answer as a decimal?

Either enter an exact answer in terms of π or use 314 for π and enter your answer as a decimal class=

Respuesta :

adioabiola adioabiola

06-06-2021

Answer:

56.54

Step-by-step explanation:

Circumference of a circle = 2πr

However, this is a semicircle

Curved circumference of the semicircle = πr

Diametrical length = 2r

Therefore, circumference of a semi circle is πr + 2r

Circumference of a semicircle = πr + 2r

r = 11

Circumference of a semicircle = πr + 2r

= (3.14 * 11) + (2 * 11)

= 34.54 + 22

= 56.54

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