Opposite angles of parallelogram are equal.
sum of interior angles of parallelogram is 360 degrees.
Therefore,
A + B + C + D = 360
x + 145 + x + 145 = 360
x = 35
Therefore angle C is 35 degrees
A line is 180°, so the supplementary angel makes up the difference between. 180 - 60 = 120°
So 4x^2+-2x+-6 then multiply by 5 would be the Area of the entire rectangle using the formula A=bh
You'll get 4x^2 − 2x − 6
Answer:
It has no perfect square factors, unless you count 1 = 1^2. That's sort of a degenerate case we don't usually count, since every integer has that factor. We would usually say that 1290 is a square-free integer. Hope this helps!!