odhrankyles90 odhrankyles90
  • 22-03-2021
  • Mathematics
contestada

Find the area of this semi-circle with radius,
r
= 4cm.
Give your answer as an expression in terms of
π

Respuesta :

DetreneJuhalez DetreneJuhalez
  • 22-03-2021

Answer:

8π

Step-by-step explanation:

General formula for area of a circle:

[tex]\pi {r}^{2} [/tex]

the question asks for half of a coracle, namely, a semicircle. thus, we multiply the area of a full circle by half

[tex] \frac{1}{2} \times {4}^{2} \times \pi[/tex]

= 8π

Answer Link
beckyalexis7
beckyalexis7 beckyalexis7
  • 22-03-2021

Answer:

8π

Step-by-step explanation:

1\2πr2

1/2×4×4=8

=8π

Answer Link

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