Question

so: V
و لا
& find the circumference of a circle radius = 7cm
angle = 120 area 2
pie r​

Answer 1

Answer:

The circumference is about

21

c

m

Explanation:

The circumference of a circle is about

3

times longer than the diameter.

The actual formula is

C

=

π

×

D

The value for

π

is about

3.142

...

So if you just want an approximate answer, you could say that the circumference of the circle in question is about:

7

×

3

=

21

c

m

Answer 2

Answer:

Area=

360

120

×πr

2

=

3

π

×7×7=49×

3

π

=49×

7×3

22

=

3

154

cm

2