Question

find the total surface area and lateral surface area of a cuboid with length 3.5 breadth 32 diameter and height 260 CM

Answer 1

Hello,
we have that:
a= 3.5m ;
b=32 dm=3.2 m;
h=260 cm= 2.6 m

we calculate  the total area of ​​the cuboid:
Atot=2(ab+ah+bh)=2×(3.5×3.2+3.5×2.6+3.2×2.6)
       =2×(11.2+9.1+8.32)=2×28.62=57.64 m²

we calculate the lateral area of the cuboid:
Al=2(ah+bh)=2×(3.5×2.6+3.2×2.6)
    =2×(9.1+8.32)=2×17.42=34.84 m²

bye :-)