Question

Find the area of a circle with radius, r =

Answer 1

To calculate the radius of this circle, we must take into account that:

Data:

• R = 7.4
• π = 3.14

To calculate the area of the circle, we apply the following formula:

• A = π * r², where

a = area

π = pi

r = radius

Substituting the values of the equation:

• $\large\displaystyle\begin{gathered}\sf A=3.14*(7.4 \ m)^{2} \end{gathered}$

Taking the square root

• $\large\displaystyle\begin{gathered}\sf A=3.14*54.76 \ m^{2} \end{gathered}$

Multiplying

• $\boxed{\large\displaystyle\begin{gathered}\sf A=171.95 \ m^{2} \end{gathered}}$

Answer: The approximate area of the circle is 171.95 m².

Answer 2

Answer:

172.03 m²

Step-by-step explanation:

Hello!

Area of a circle: $A = \pi r^2$

• A = area
• π = pi
• r = radius

Plug in the radius into the formula to find the area.

Find the Area

• $A = \pi r^2$
• $A = \pi (7.4)^2$
• $A = 54.76\pi$
• $A = 172.0336137106 \approx 172.03$

The area is approximately 172.03 m².