sliim89
16.02.2021 •
Mathematics
A=5+ root 3,find a+1/a
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Ответ:
Step-by-step explanation:
It seems your question is incomplete. A complete question is attached in figure as shown below.
we know, area of sector is given by
if is in radian,
then, A =
or, A =
Here given,
r = 6 unit
so, A = 1/2 × (6)² × π/2
A = 1/2 × 36 × π/2 = 9π unit²
hence, option (b) is correct.