Which statements are true regarding the symmetries of
this shape? Check all that apply.
The order of rotational symmetry is 3.
Symmetry occurs after a rotation of 240°.
The smallest angle of rotational symmetry is 180º.
The figure has 3 lines of reflectional symmetry.
Symmetry occurs after a rotation of 60°.

3. parallelogram

step-by-step explanation:

we turn each of our sides into direction vectors

ab=b-a=(3 - 7, 1 - 0) = (-4, 1)

bc=c-b=(1,6)

cd=d-c=(4,-1)

da=a-d=(-1,-6)

we see how the opposite sides have negated direction vectors; this is characteristic of a parallelogram.   we have congruent sides ab=cd and bc=da with unequal lengths because 1^2+6^2 is different from (-4)^2+1^2.   so it's not a square or a rhombus.  

we check the dot product of direction vectors of adjacent sides.   we have

ab dot bc = -4(1) + 1(6) = 2

that's not zero so the sides are not perpendicular.   we've ruled out rectangle.

the direction vectors indicate two pairs of congruent parallel sides, so we choose parallelogram over trapezoid.

answer are

step-by-step explanation:

110

step-by-step explanation:

based on the question i am guessing that it is a typo for abc

if i knew id you bro,, my bad