4 years ago

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1 answer:

7 0

1.) v=(l)(w)(h)
V=(9)(9)(9)
V=(81)(9)
V=729in^3

2.) (I forget if this is the real equation to this but this would give you the same answer)

V=(l)(w)(h)
————
2
V=(8)(6)(12)
————-
2
V=576/2

V=288cm^3

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Find the area of the polygon defined by the coordinates (0, -5), (-5, 0), (-15, -20), and (-20, -15).

lapo4ka [179]

This is a rectangle... Did you draw the points?

Find
- the length of the segment going from (-5,0) to (0,-5)
- and the length of the segment from (-20,-15) to (-15,-20).

These are the length and width of the rectangle; multiply both quantities.

The width is found with the formula:
$\sqrt{x_1 - x_2)^2 + (y_1 - y_2)^2} = \sqrt{((-15) - (-20))^2 + ((-20) - (-15))^2}$
The length is $\sqrt{x_1 - x_2)^2 + (y_1 - y_2)^2} = \sqrt{((-15)-(0))^2+((-20)-(-5))^2}$