Din Activity 1 Find the area of the given circle. A = πTXr² (π = 3.14)
1. 3cm A=
2.6cm A=
3.22dm A=
4.9cm A=
5.40m A=
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Din Activity 1 Find the area of the given circle. A = πTXr² (π = 3.14)
1. 3cm A=
2.6cm A=
3.22dm A=
4.9cm A=
5.40m A=
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Answer:
1. A = πr² = 3.14 x (3cm)² = 28.26 square centimeters
2. A = πr² = 3.14 x (2.6cm)² = 21.16 square centimeters
3. Convert 22dm to meters: 22dm = 2.2m
A = πr² = 3.14 x (22cm)² = 1519.76 square centimeters
4. A = πr² = 3.14 x (4.5cm)² = 63.62 square centimeters
5. Convert 40m to centimeters: 40m = 4000cm
A = πr² = 3.14 x (2000cm)² = 12,566,370.4 square centimeters
Verified answer
Answer:
Therefore, the areas are:
1. 28.26cm²
2. 113.04cm²
3. 1520.56cm²
4. 254.34cm²
5. 5024m²
Step-by-step explanation:
1. A = π x (3cm)² = 3.14 x 9cm² = 28.26cm²
2. A = π x (6cm)² = 3.14 x 36cm² = 113.04cm²
3. A = π x (22cm)² = 3.14 x 484cm² = 1520.56cm²
4. A = π x (9cm)² = 3.14 x 81cm² = 254.34cm²
5. A = π x (40m)² = 3.14 x 1600m² = 5024m²