<u>Answer:</u>
The correct answer for this is: rhombus.
<u>Step-by-step explanation:</u>
The name of a polygon that has four congruent sides with the angles measuring 60°, 120°, 60° and 120° is rhombus.
According to the properties of a rhombus, the opposite angles are equal and opposite sides are parallel.
However, the adjacent angles of rhombus are supplementary which means that they add up to 180°.
For example:
60° + 120° = 180°
18/2,27/3,36/4,45/5,54/6,63/7,72/8, and 81/9 can be some.
Answer:(-x-1)(x-4)
Step-by-step explanation:

factor the equation (multiples of 4 are 1 and 4 and 2 and 2) 4-1=1 so the factor you want to use are 1 and 4
-1(x +1)(x-4) -- -4+1=3
distribute the -1 into the first factor
(-x-1)(x-4)
Answer:
it should be 3/1
Step-by-step explanation: