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Mathematics 19 Online
OpenStudy (anonymous):

what is the area of a parallelogram with a base of4 2/3 and heigth of 5 1/5?

OpenStudy (anonymous):

IS IT 12.1

OpenStudy (anonymous):

How do you find the area of a parallelogram ?

OpenStudy (anonymous):

It's base times height, like for a rectangle.

OpenStudy (anonymous):

length x breadth dude multiply both the sides !

OpenStudy (anonymous):

1/2 * base * height

OpenStudy (anonymous):

sweetz - that is for triangle i believe

OpenStudy (anonymous):

ohhhhhhhh srryyyyy wait i made a blundr

OpenStudy (anonymous):

take average of widths, then multiply by height

OpenStudy (anonymous):

((top length)+(bottom length))/2 * height

OpenStudy (anonymous):

Parallelogram, not trapezoid. Top length = bottom length.

OpenStudy (anonymous):

or you can break it up into a rectangle and a triangle by cutting out the center rectangle.

OpenStudy (anonymous):

oh, whoops, in that case, it's just base*height.

OpenStudy (anonymous):

so if base is 4 2/3 and height is 5 1/5 would the area be 24 and 4/15

OpenStudy (anonymous):

Yeah, that's what I get.

OpenStudy (anonymous):

How do find the surface area of a rectangular prism

OpenStudy (anonymous):

5 sides?

OpenStudy (anonymous):

Is it l*w*h cubed ?

OpenStudy (anonymous):

oh, six sides like a die, right?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

it will be the sum of all six sides, each has two dimensions to it and there are two copies of each. So, 2*(L*W+L*H+W*H) should account for all six sides

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