A fountain in the park has two circular pools that are the same size. What is the total area of the pools if the radius is 3 yards? Use 3. 14 for Pi and round the approximate area to the nearest tenth, if necessary. Check all that apply. 9 Pi yd2 12 Pi yd2 18 Pi yd2 28. 3 yd2 56. 5 yd2.

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation:

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8