cowboy31 cowboy31

02-11-2019
Mathematics

contestada

usett =3.14 find the circumference and area of a circle d =7cm

Respuesta :

EmoTrash102 EmoTrash102

02-11-2019

Answer:

area=38.465, circumference=21.98

Step-by-step explanation:

Divide the diameter by 2 to find the radius

7/2=3.5

Use the formula πr^2 find area

3.5*3.5=12.25

12.25*3.14=38.465

a=38.465

Then, use the formula 2πr to find circumference

2*3.14=6.28

6.28*3.5=21.98

c=21.98

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