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if you divide a 4 inch by 8 inch rectangle from corner to corner, what new shapes would you get? are they congruent? why or why not?



Answer :

You get 2 congruent right triangles when you divide a rectangle diagonally.
(This is one way to show that the area of each of those triangles is 1/2*base*height. Rectangle area= (4in)(8 in) = 32 in2. Triangle area= (1/2)(4in)(8in) = 16 in2. 

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