Question

The length, breadth, height of a room are 8m , 6m and 3m

respectively. Find the cost of white washing the four walls and ceiling at the

rate of $5 per msq with step pls​

Answer 1

Answer:

length = 8m

breadth = 6m

height = 3m

• Curved surface area of cuboid(cuboidal room) + area of rectangle(ceiling) = area of white washing

[ 2 (l+b) h ] + [ l × b ]

[ 2 ( 8 + 6 ) 3 ] + [ 8 × 6 ]

[ 2 × 14 × 3 ] + 48

[ 28 × 3 ] + 48

84 + 48 = 132 metre square

cost of white washing in 1 metre sq. = $5

cost of white wasing in 132 metre sq. = 132 × 5

= $ 660

Step-by-step explanation:

SO , COST OF WHITE WASHING IS $660.

THANK YOU.....!!!!!