annamalek711 annamalek711
  • 30-03-2020
  • Mathematics
contestada

i need help for these questions please. Find the area to each shape.

i need help for these questions please Find the area to each shape class=
i need help for these questions please Find the area to each shape class=
i need help for these questions please Find the area to each shape class=

Respuesta :

danyans0413 danyans0413
  • 30-03-2020

Answer:

A=9π, A=4.5π, A=20.48π + 140.8

Step-by-step explanation:

1. A=πr²

A=π6²

A=36π

A=36π/4

A=9π

2. A=π3²

A=9π

A=9π/2

A=4.5π

3. A=π6.4²

A=40.96π

A=40.96π/2

A=20.48π + (12.8)×(11)

A=20.48π + 140.8

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