Question

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

Answer 1

1.
`2.56^(2)` cm

2. 318.198 ft^2.

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
`x√(2)`. So, in essence,
`x√(2)=15`.

15/
`√(2)`=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.