one side of a rectangular field is 13 m and one of its diagonal is 17 m . find the area of the field .
"solution other side = √ ( 17 ) 2 - ( 13 ) 2 = √ 289 - 169 = √ 120 = 10.9 m . ∴ area = ( 13 x 10.9 ) m 2 = 141.7 m 2 . answer b"
rectangle_area(13, sqrt(subtract(power(17, const_2), power(13, const_2))))