Question

The radius of a circle is 1 kilometer. What is the circle's area?
Use 3. 14 for ​. Square kilometers

Answer 1

Answer:

3.14km^2

Step-by-step explanation:

area of circle= πr^2

=3.14×1^2

=3.14km^2

Answer 2

Answer:

• $\boxed{\sf{3.14\ km^2}}$

Step-by-step explanation:

Given:

• Use the formula of area of circle.

Area of circle:

$\Longrightarrow: \sf{A=\pi r^2}$

Solutions:

• Radius of a circle is 1 kilometer.

$\Longrightarrow: \sf{3.14*1^2}$

Solve.

$\sf{1^2=1*1=1}$

$\sf{3.14*1=\boxed{\sf{3.14\ km^2}}$

• Therefore, the correct answer is 3.14km².

I hope this helps, let me know if you have any questions.