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Mathematics 79 Online
OpenStudy (anonymous):

3.The diagonals of an isosceles trapezoid BC,AC are labeled 5x and 3x + 40. Find the length of the diagonals.

OpenStudy (anonymous):

OpenStudy (anonymous):

so it's AC and BD are the diagnols...

OpenStudy (anonymous):

since this is an isosceles trapezoid, the diagnols should be equal. set 5x = 3x+40 and solve for x. to find the length of the diagnols, stick it back into 5x or 3x+40

OpenStudy (anonymous):

HOW DO I SLOVE FOR X

OpenStudy (anonymous):

|dw:1332965852853:dw| subtract 3x from both sides of the equal sign.

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