katelynlee880 katelynlee880

20-05-2020
Mathematics

contestada

The perimeter of a semicircle is 15.42 kilometers. What is the semicircle's radius?

Respuesta :

ujalakhan18 ujalakhan18

20-05-2020

Answer:

r = 4.9 km

Step-by-step explanation:

Perimeter of circle = πr

Where P=15.42 km , π = 3.14

15.42 = (3.14)(r)

r = 15.42 / 3.14

r = 4.9 km

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