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Mathematics 22 Online
OpenStudy (darkworld131):

Diagonal DB divides ABCD into two equilateral triangles. The area of ABCD is____ square cm. (use 1.7 as the value of the square root of 3)

jhonyy9 (jhonyy9):

so the lenght of AC =10 ?

jhonyy9 (jhonyy9):

the diagonal DB where is ?

jhonyy9 (jhonyy9):

because DB is a dide

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