Answer:
C and B
Step-by-step explanation:
The sign means greater than or equal to. -4 is greater than -5, so check that, 5 is definitely greater than -5, so check that.
B, C, E
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12
since tile B is a regular polygon means it is an equilateral triangle. The angle inside B would be 60.
(360 - 60)/2 = 150 (interior angle of tile A)
180 - 150 = 30 (exterior angle of tile A)
therefore number of sides = 360 /30 = 12
x^2 + y^2 = 49
For center (h,k) and radius r, eqution of the respective circle is
(x-h)^2 + (y-k)^2 = r^2