Detailed description
Cartesian plane. Points (5, 7), (x, 13) shown. Segment drawn joining these points. Dotted segment from (5, 7) to (x, 7) labelled 'x –5'. Dotted segment from (x, 7) to (x, 13) labelled '13 – 7'. Right angle marked at (x, 7).
Cartesian plane. Points (5, 7), (x, 13) shown. Segment drawn joining these points. Dotted segment from (5, 7) to (x, 7) labelled 'x –5'. Dotted segment from (x, 7) to (x, 13) labelled '13 – 7'. Right angle marked at (x, 7).