wesleydavis13 wesleydavis13

17-06-2021
Mathematics

contestada

In circle P, ST = 30 ft. What is the circumference of the circle?

30π ft

15π ft

10π ft

45π ft

In circle P ST 30 ft What is the circumference of the circle 30π ft 15π ft 10π ft 45π ft class=

Respuesta :

reinhard10158 reinhard10158

27-06-2021

Answer:

30×pi ft

Step-by-step explanation:

ST is the diameter.

the formula for the circumference of a circle is

C = 2×pi×r

r = radius = diameter / 2

so,

C = 2×pi×30/2 = pi×30

therefore, the first answer option is correct.

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