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zahid79
09.01.2020 •
Mathematics
What is the approximate area of the shaded sector in the circle shown below?
a. 20.36 cm²
b. 5.09 cm²
c. 2.83 cm²
d. 5.65 cm²
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Ответ:
B.![5.09\ cm^2](/tpl/images/0448/6223/a494c.png)
Step-by-step explanation:
From the given figure it can be seen that half of the circle (sector with
is the semicircle ) is shaded, therefore, the area of the shaded region is given by :-
Also, the radius of the circle =![\frac{3.6}{2}1.8\ cm](/tpl/images/0448/6223/3e245.png)
Now, the area of the shaded sector in the circle is given by :-
Hence, the approximate area of the shaded sector in the circle=![5.09\ cm^2](/tpl/images/0448/6223/a494c.png)
Ответ: