htxadrie htxadrie

18-01-2015
Mathematics

Answered

what is the best estimate of the area of the shaded region?

what is the best estimate of the area of the shaded region class=

Answer :

daniel2019360 daniel2019360

18-01-2015

area of outer circle=[tex]11^{2} * \pi [/tex]=121[tex] \pi [/tex]
area of inner circle=[tex]4^{2} * \pi =16 \pi [/tex]
area of shaded part=[tex]121 \pi -16 \pi =105 \pi [/tex]

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