d the area of the circle having radius : 24.5 cm (ii) 1.05 m (iii) 9.8 m

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1. We know the formula for the area of a circle is  
   $$
   A = \pi r^2.
   $$

2. For a circle with radius $$ r = 24.5 $$ cm:  
   $$
   A = \pi (24.5)^2 = \pi (600.25) = 600.25\pi \quad \text{cm}^2.
   $$  
   Approximately,  
   $$
   A \approx 600.25 \times 3.1416 \approx 1885.74 \quad \text{cm}^2.
   $$

3. For a circle with radius $$ r = 1.05 $$ m:  
   $$
   A = \pi (1.05)^2 = \pi (1.1025) = 1.1025\pi \quad \text{m}^2.
   $$  
   Approximately,  
   $$
   A \approx 1.1025 \times 3.1416 \approx 3.464 \quad \text{m}^2.
   $$

4. For a circle with radius $$ r = 9.8 $$ m:  
   $$
   A = \pi (9.8)^2 = \pi (96.04) = 96.04\pi \quad \text{m}^2.
   $$  
   Approximately,  
   $$
   A \approx 96.04 \times 3.1416 \approx 301.59 \quad \text{m}^2.
   $$
The areas are: - For a radius of 24.5 cm: approximately 1885.74 cm² - For a radius of 1.05 m: approximately 3.464 m² - For a radius of 9.8 m: approximately 301.59 m²

d the area of the circle having radius : 24.5 cm (ii) 1.05 m (iii) 9.8 m

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