leilavellai91 leilavellai91
  • 02-03-2021
  • Mathematics
contestada

PLEASE HELP !!!

Work out the area of this semicircle.
Take a to be 3.142 and write down all of the digits given by your calculator.
11 cm​

PLEASE HELP Work out the area of this semicircleTake a to be 3142 and write down all of the digits given by your calculator11 cm class=

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Hrishii
Hrishii Hrishii
  • 02-03-2021

Answer:

[tex] 190.091 \: {cm}^{2} [/tex]

Step-by-step explanation:

Area of the semicircle

[tex] = \frac{1}{2} \pi {r}^{2} \\ \\ = \frac{1}{2} \times 3.142 \times {11}^{2} \\ \\ = \frac{1}{2} \times 3.142 \times 121 \\ \\ = \frac{1}{2} \times 380.182 \\ \\ = 190.091 \: {cm}^{2} [/tex]

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