Answer:
13.4m
Step-by-step explanation:
to calculate the circumfrence of a circle we go by the simple formula which says
circumfrence of a circle = 2πr
circumfrence of a circle = ? , π=3.14 radius = 84=2.1336meter
circumfrence of a circle= 2 × 3.14 ×2.1336
circumfrence of a circle = 6.28 × 2.1336
circumfrence of a circle = 13.399m
circumfrence of a circle approximately = 13.4m
Answer:
Circumference=527.52 inches
Step-by-step explanation:
Radius if the circle=84 inches
Circumference of a circle is the length of its boundary that can be measure by using the formula i.e
Circumference of a circle= [tex]2*\pi *r[/tex]
As, [tex]\pi =\frac{22}{7} =3.14[/tex]
So, Circumference:
[tex]2*(3.14)*84\\\\=3.14*168\\\\=527.52inches[/tex]
The circumference of the circle with the given radius of 81 inches is 527.52 inch
