Question

The radius of a circle is 3.5 cm, find its circumference and area​

Answer 1

given radius 3.5

circumference of a circle is 2πr

2×22/7×3.5

22ans

Area of circle is πr²

22/7×3.5×3.5

38.5cm²

Answer 2

Question:

The radius of a circle is 3.5 cm, find its circumference and area​

Answer:

Circumference- 22 cm

Area- 38.5 $cm^{2}$

Step-by-step explanation:

Radius of Circle: 3.5 cm

Circumference of Circle:

= $2\pi r$ ( r is radius )

= 2 x $\frac{22}{7}$ x 3.5 ( We put 3.5 cm here because it is the radius and according to the formula to finding the circumference of a circle, We have to do - "2 times  pi x r" r is radius )

= $\frac{44}{7}$ x 3.5

= $\frac{154}{7}$

= 22 cm

Area of Circle:

= $\pi r^{2}$

= $\frac{22}{7}$ x 3.5 x 3.5

=  $\frac{22}{7}$ x 12.25

= $\frac{269.5}{7}$ ( if you can't see the fraction clearly then, I would like to tell you that it is 269.5 by 7 )

= 38.5 $cm^{2}$

PLZ MARK THIS ANSWER AS THE BRAINLIEST! <3