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Mathematics 14 Online
OpenStudy (anonymous):

explain how the formula for the area of a parallelogram is derived from that of a rectangle.

jimthompson5910 (jim_thompson5910):

Hint: Draw out a parallelogram and a rectangle and compare the two |dw:1344542457084:dw|

jimthompson5910 (jim_thompson5910):

|dw:1344542471066:dw|

jimthompson5910 (jim_thompson5910):

I started out with a rectangle. Then I added parallel lines to form a parallelogram inside the rectangle

OpenStudy (anonymous):

okay and it also made two triangles

jimthompson5910 (jim_thompson5910):

yes that is also true

OpenStudy (anonymous):

Kk

OpenStudy (anonymous):

Is that it?

jimthompson5910 (jim_thompson5910):

If the rectangle has a base 'b' and a height 'h' then |dw:1344542659343:dw| So the area of this rectangle is A = bh

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