XYREAL11idn
Answered

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Sagot :

ReineXialelGonzalesidn

Answer:

1. A = πr²

= 3.14 × ( 2 × 2 )

= 3.14 × 4

= 12.56 m²

2. A = πr²

= 3.14 × ( 3 × 3 )

= 3.14 × 9

= 28.26 ft²

3. A = πr²

= 3.14 × ( [ 8 ÷ 2 ] × [ 8 ÷ 2 ] )

= 3.14 × 16

= 50.24 cm²

4. A = πr²

= 3.14 × ( [ 6 ÷ 2 ] × [ 6 ÷ 2 ] )

= 3.14 × 9

= 28.26 m²

5. A = πr²

= 3.14 × ( 1.1 × 1.1 )

= 3.14 × 1.21

= 3.7994 ft²

6. A = πr²

= 3.14 × ( [ 10 ÷ 2 ] × [ 10 ÷ 2 ] )

= 3.14 × 25

= 78.5 cm²

7. A = πr²

= 3.14 × ( [ 8 ÷ 2 ] × [ 8 ÷ 2 ] )

= 3.14 × 16

= 50.24 cm²

8. A = πr²

= 3.14 × ( 10 × 10 )

= 3.14 × 100

= 314 in²

9. A = πr²

= 3.14 × ( 0.3 × 0.3 )

= 3.14 × 0.09

= 0.2826 yd²

10. A = πr²

= 3.14 × ( 0.9 × 0.9 )

= 3.14 × 0.81

= 2.5434 ft²

Step-by-step explanation:

I hope this helps... Please correct my answers if it is wrong.