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smithtamarshae
06.12.2019 •
Mathematics
Find the total area of 2cm 8cm 9cm 1cm 7cm 7cm
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Ответ:
B
Step-by-step explanation:
The standard form of equation of a circle is
(x-h)^2+(y-k)^2=r^2
Where h is x coordinate of the centre, k is the y coordinate of the centre and r is the radius of the circle
Hence given that h=5, k=-9 and r=12
So the above equation becomes
(x-5)^2+(y-(-9))^2=(12)^2
(x-5)^2+(y+9)^2=144
Hence the answer is B