Jasminepondevida11idn
Answered

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when do you use the following formulas for circumference?
A. C=πd
B. C=2πr​

Sagot :

MissLovingidn

Answer:

☞︎︎︎Answer☜︎︎︎

B. C = 2πr

I hope that helped

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[tex]\small\tt\color{lavender}{꧁༒MissLoving༒꧂}[/tex]

Kumiee7idn

Answer:

B

Step-by-step explanation:

When we use the formula to calculate the circumference of the circle, then the radius of the circle is taken into account. Hence, we need to know the value of the radius or the diameter to evaluate the perimeter of the circle.

Circumference of a Circle Formula

The Circumference (or) perimeter of circle = 2πR

where,

R is the radius of the circle

π is the mathematical constant with an approximate (up to two decimal points) value of 3.14

Again,

Pi (π) is a special mathematical constant; it is the ratio of circumference to diameter of any circle.

where C = π D

C is the circumference of the circle

D is the diameter of the circle

For example: If the radius of the circle is 4cm then find its circumference.

Given: Radius = 4cm

Circumference = 2πr

= 2 x 3.14 x 4

= 25.12 cm

HOPE IT'S HELP

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