Explanation:
you can decide to convert all heights to meter
John Is 1.62 meters tall
Sara is 5 feet and 6 inches tall 1 foot= 0.3048 meter
therefore 5 feet= 5×0.3048=1.524 meters
and 1 inch= 0.0254 meters
6 inches= 6×0.0254=0.1524 meter
Sara's total height is 1.524+0.1524=1.6764 meters
so, Sara is taller