A box has a square base with each side measuring 10 inches. The height of the box is 4 inches. What is the surface area of the box in cubic inches?
(SHOW WORK PLEASE I DONT UNDERSTAND)
1) Area of the square =a² The base is a square with the side 10 in. So area of the base A=10²=100 in² 2) We have 2 such squares - bottom and top, Area of the bottom and top =2*100= 200 in² 3) We have 4 side faces that are have side 10 and 4, these faces are rectangles. Area of rectangle =a*b, a=10, b=4 Area of one side face=10*4=40 in² Area of all 4 side faces = 4*40=160 in² 4) All surface area = area of 2 bases + area of side faces(lateral area) A=200 in²+160 in²=360 in² A=360 in²
