Answer:
Opposite sides of a parallelogram are parallel (by definition) and so will never intersect. The area of a parallelogram is twice the area of a triangle created by one of its diagonals. The area of a parallelogram is also equal to the magnitude of the vector cross product of two adjacent sides.
Step-by-step explanation:
The triangle is isosceles, so the bottom angles have the same measure. So, the angles measure 2x, 3x+5 and 3x+5.
The sum of the interior angles of a triangle is 180, so we have
So, angle A measures
Answer: -6
Step-by-step explanation:
The factored expression would look like this : (3x^2-y)(9x^4+3x^2y+y^2)
