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For what value of x must the parallelogram be a rectangle? Responses 7x − 11 = 3x + 21; x = 45 7x − 11 = 3x + 21; x = 45 (7x − 11) + (3x + 21) = 180; x = 17 (7x − 11) + (3x + 21) = 180; x = 17 (7x − 11) + (3x + 21) = 90; x = 8 (7x − 11) + (3x + 21) = 90; x = 8 Skip to navigation

For what value of x must the parallelogram be a rectangle Responses 7x 11 3x 21 x 45 7x 11 3x 21 x 45 7x 11 3x 21 180 x 17 7x 11 3x 21 180 x 17 7x 11 3x 21 90 x class=

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