Two sides are 50 sq cm (5 x 10) and other side is 60 sq cm (6 x 10) = 2(50) + 60 = 160 sq cm
The two ends are triangles with base of 6 cm and height of 4 cm. Area of each is 1/2 base x height. = 6 x 4 / 2 = 12 sq cm. There are two end so 2 x 12 = 24 sq cm.
Total surface area is 160 + 24 = 184 sq cm.
