Question

Find the area of each circle. In question 1 take π = 31/7 or 22/7 .
diameter = 56 cm
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Answer 1

Answer:

radius = 56/2 = 28cm

therefore, area =

$\pi \times {r}^{2}$

22/7 × 28 ×28 =22 × 4 ×28 = 2464 sq. cm.

Answer 2

Answer:

1.) (i) 616 cm²

(ii) 2464 cm²

Step-by-step explanation:

1.) (i) Radius = 14 cm

Now, area of circle = πr²

=> (22/7)(14)(14)          (We should take π as 22/7 whenever radius/diameter is divisible by 7)

=> (14*22)(14/7)

=> 308*2 => 616 cm²

(ii) Diameter = 56 cm

∴ Radius = Diameter/2 => 56/2 => 28 cm

Now, area of a circle = πr²

=> (22/7)(28)(28)          (We should take π as 22/7 whenever the radius/diameter is divisible by 7)

=> (28*22)(28/7)

=> 616*4 => 2464cm²