<span>1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330</span>
3^2 * 3^5 =
3*3=9 * 3*3*3*3*3= 243
I think you can figure out it from there
<span>5.2 square inches
</span><span>All angles are 60 degrees.
2/3h=r
2/3h=6
h=9
You have a right triangle therefore you can calculate the base as (9tan30)=sqrtof3 over 3
Area of triangle 1/2 bh = 1/2(sqrt3 over 3)
(9) As this is just 1 triangle you then need to multiply it by 2
bh = sqrt of 3 over 3 * 9</span><span>
</span>
5:6 is already at it's simplest form as there are no other common factors to divide it by!