Hola! :3
Sabemos que:
• P=2πr
• A=πr²
• D=2r
Reemplazamos:
1)
P=2(3,14)(22cm)
P= 138,16cm
A=(3,14)(22cm)²
A= 1519,76cm²
2)
15cm=2r
7,5cm=r
P=2(3,14)(7,5cm)
P= 47,1cm
A=(3,14)(7,5cm)²
A= 17,6625cm²
Espero haberte ayudado :D
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Verified answer
Hola! :3
Sabemos que:
• P=2πr
• A=πr²
• D=2r
Reemplazamos:
1)
P=2(3,14)(22cm)
P= 138,16cm
A=(3,14)(22cm)²
A= 1519,76cm²
2)
15cm=2r
7,5cm=r
P=2(3,14)(7,5cm)
P= 47,1cm
A=(3,14)(7,5cm)²
A= 17,6625cm²
Espero haberte ayudado :D