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If the degree measures of the angles of quadrilateral are `4x ,\ 7x ,\ 9x\ a n d\ 10 x ,` what is the sum of the measures of the smallest angle and largest angle? (a) `140^0` (b) `150^0` (c) `168^0` (d) `180^0`

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RD SHARMA ENGLISH-QUADRILATERALS-All Questions
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  9. If the degree measures of the angles of quadrilateral are 4x ,\ 7x ,...

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