If a planet x has a tilt of 18 degrees on its axis, then:

(a) the tropics would extend to degrees north and south of the equator; and

(b) the arctic region would extend degrees from the north and south poles.

(c) the planet's arctic circle would be located at degrees north latitude.

i believe so yes mindblown

the answer would be the third option, "no, ariel should have added 9^2 and 12^2 and compared that to 15^2."

this is found through the pythagorean theorem, which is a^2 + b^2 = c^2.

this is the correct way of solving the problem:

9^2 + 12^2 = 15^2

81 + 144 = 225

225 = 225