I'm very stuck and the notes above it aren't helping, please help!

1. cm

2. 318.198 ft^2.

Step-by-step explanation:

Hmm. Very stuck. We'll just take it slow. :)

For the first one, we'll just square the bottom of the parallelogram, because

it's a square. The answer is above.

The second is a bit more complicated. The formula for the area of a parallelogram is (base) x (height)= A(area), but that will be of no use until we know the height (the dashed line on the left).

So, do let's go about finding the height with a 45-45-90 triangle.

The way these work is that the two short sides are equal to x, and the longer one is . So, in essence, .

15/=10.61

Both of the other two sides (one being the height) are 10.61 ft long.

Multiply that by 30:

30 x 10.61= and you get 318.198 ft^2.

the solution is h=10 because you add 9 to each side of the equation.

439400

step-by-step explanation:

130^2 = 16900

16900*26 = 439400