tmua 2017 Q9

tmua · Uk · paper1 1 marks Circles Inscribed/Circumscribed Circle Computations
A circle has equation $x ^ { 2 } + y ^ { 2 } - 18 x - 22 y + 178 = 0$
A regular hexagon is drawn inside this circle so that the vertices of the hexagon touch the circle.
What is the area of the hexagon?
A 6
B $6 \sqrt { 3 }$
C 18
D $18 \sqrt { 3 }$
E 36
F $36 \sqrt { 3 }$
G 48
H $48 \sqrt { 3 }$
& F
A circle has equation $x ^ { 2 } + y ^ { 2 } - 18 x - 22 y + 178 = 0$

A regular hexagon is drawn inside this circle so that the vertices of the hexagon touch the circle.

What is the area of the hexagon?

A 6

B $6 \sqrt { 3 }$

C 18

D $18 \sqrt { 3 }$

E 36

F $36 \sqrt { 3 }$

G 48

H $48 \sqrt { 3 }$