Question

find the circumference of each circle use 3.14 for the value of pi round your answer to the nearest tenth if necessary

Answer 1

18.2 cm

Explanation:

Given,

Radius of the circle = 2.9 in.

Therefore,

Circumference of the circle

=

2

�

�

=2πr

=

2

×

3.14

×

2.9

�

�

=2×3.14×2.9cm

= 18.212 cm

As,

It has asked for nearest tenth so it will be,

18.212 cm

Since, there is 1 in the hundredth digit so it will round to 0.

Hence,

18.2 cm is the required circumference of the circle rounded to nearest tenth.