Pa answer nalang po ng may solution ty
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Answer:
Given diameter:
A = 1/4πd²
Given radius:
A = πr²
1. A = (3.14)(7m)²
= (3.14)(49m²)
A = 153.86m²
2. A = 1/4(3.14)(6cm)²
= 1/4(3.14)(36cm)²
= 1/4 × 113.04cm²
= 113.04cm²/4
A = 28.26cm²
3. A = (3.14)(5cm)²
= (3.14)(25cm²)
A = 78.5cm²
4. A = 1/4(3.14)(8m)²
= 1/4(3.14)(64m)²
= 1/4 × 200.96m²
= 200.96m²/4
A = 50.24m²