Answer: The acute angle between diagonals is 50
Step-by-step explanation:
Red angle = 50 because An exterior angle of a triangle is equal to the sum of the opposite interior angles (pink angles).
Alternatively:
Green angle is 130 by sum of interior angles of a triangle.
Red angle is 50 by Adjacent angles
Answer:
x = -3
Step-by-step explanation:
The vertex lies on the axis of symmetry, whose x-coordinate is halfway between -9 and 3: x = -3
Area of a parallelogram = base x height
So, 10.5 x 7 = 73.5
Answer:
I think the oil pollutes the groundwater
Step-by-step explanation:
My six grade science teacher once taught us something about this, but that was a year ago so I might be wrong, but I'm pretty sure that the oil will spread and then pollute local rivers and streams, by polluting the groundwater.
