Question

3. Find the area of a circle whose diameter is (d) 3.5 km​

Answer 1

Answer:

11km^2

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Step-by-step explanation:

area of a circle = pi x diameter.

$= \frac{22*3.5}{7} \\= \frac{22 * 35}{70} \\= \frac{22 *5}{10} \\= \frac{110}{10} \\= 11$

hence,

22/7 x 3.5km = 11km^2

Answer 2

Step-by-step explanation:

Answer:

11km^2

!!!

Step-by-step explanation:

area of a circle = pi x diameter.

$\begin{gathered}= \frac{22*3.5}{7} \\= \frac{22 * 35}{70} \\= \frac{22 *5}{10} \\= \frac{110}{10} \\= 11\end{gathered}$

hence,

22/7 x 3.5km = 11km^2