sheekyman sheekyman
  • 04-06-2019
  • Mathematics
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PLEASE HELP 13 POINTS

PLEASE HELP 13 POINTS class=

Respuesta :

kittyunicorn5
kittyunicorn5 kittyunicorn5
  • 04-06-2019

Answer:

he circumference of a circle is equal to Pi π times the diameter d

.

π⋅(diameter)

Since the diameter d

is equal to 2 times the radius r, the formula for circumference using radius is 2πr

.

2π⋅(radius)

Substitute the value of the radius (r=28cm)

into the formula for the area of a circle. Pi π is approximately equal to 3.14

.

3.14⋅2⋅(28cm)

Multiply 3.14

by 2

.

6.28⋅(28cm)

Multiply 6.28

by 28cm

.

6.28(28cm)

Step-by-step explanation:

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