Question

What are the lateral and surface area of the box to the nearest whole number? Use the large 15cm X 6cm rectangles on top and bottom as the bases.

Answer 1

lateral area=2(21+6)*2.26=?
surface area of top and bottom=2*21*6+/

Answer 2

122.04

Answer 3

for the first one?

Answer 4

That was not one of my choices

Answer 5

Anyone?

Answer 6

lateral surface area is the total area without the floor and roof area.
or we can say, the area of all the walls.

Answer 7

so,
for lateral surface area we need area of 4 walls,
can you identify the dimensions of the walls?

Answer 8

All the faces are rectangular,
so the area would be product of the sides.

All you need to find is the which sides do we consider for walls.

Answer 9

2.26
15
6

Answer 10

2.26 is the height.

so the walls are :
2 with dimensions 15X2.26
and 2 with dimensions 6X2.26

Answer 11

lateral area = 2 (15*2.26 + 6*2.26)

or
2*2.26* (15+6) = ...

Answer 12

109.2

Answer 13

well, my calculator says
2*2.26* (15+6) = 94.92

Answer 14

okay

Answer 15

which is 95 to the nearest whole number.

Answer 16

Thank you. Will you help me with the second part

Answer 17

the total surface area is sum of all six faces.

the 4 walls + floor + top

we already know the lateral area(4 walls)

Answer 18

the top and bottom rectangles are 15X6 each.

so just add 2*15*6 to your answer of lateral area to get total area :)

Answer 19

275?

Answer 20

yup :)