marcm166310 marcm166310
  • 28-09-2021
  • Mathematics
contestada

Find the area of this semi-circle with radius,
r
= 32cm.
Give your answer rounded to 1 DP.

Respuesta :

dchoo333
dchoo333 dchoo333
  • 03-10-2021

Answer:

1608.5[tex]cm^{2}[/tex]

Step-by-step explanation:

The area of a circle is π[tex]r^{2}[/tex].

So, it's π * [tex]32^{2}[/tex].

[tex]32^{2} = 1024[/tex]

1024 * π = 3216.990877 (using π as 3.141592654)

Divided by 2 (because it's a semicircle), it's 1608.495439.

Rounded to 1 DP, it's 1608.5 [tex]cm^{2}[/tex].

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