Q657: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7237/.jpg" alt=" -For a right
Q658: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7237/.jpg" alt=" -For the quadrilateral
Q659: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7237/.jpg" alt=" -In the figure,
Q660: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7237/.jpg" alt=" -The three altitudes
Q661: In a right triangle with acute angle
Q663: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7237/.jpg" alt=" - and
Q664: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7237/.jpg" alt=" -The region bounded
Q665: In a regular polygon, each central angle
Q666: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7237/.jpg" alt=" -If two lines
Q667: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7237/.jpg" alt=" -In