Math, asked by saritasharma25, 1 year ago

two opposite faces of a cube are open its each side is 30 cm what would be the cost of painting its outside surface at the rate of rupees 5 per square cm

Answers

Answered by abhaysontakke7
1
total surface area of outside of cube=4l×l
=4×30×30
=3600 cm2
cost =rate×area
=5×3600
=Rs 18000

saritasharma25: thanks for giving answer thank uou
kaushalya198426: Welcome
Answered by kaushalya198426
1

Answer: 18000

Step-by-step explanation:

Side of cube = 30cm

Area of cube with four sides = lateral surface area

Lateral surface area = 4*side*side

Lateral surface area of this cube = 4*30cm*30cm

Lateral surface area of this cube =4*900cm sq

Lateral surface area of this cube = 3600cm sq

Cost of painting 1sq cm = rs.5

Cost of painting 3600sq.cm = rs.5*3600

Cost of painting 3600sq.cm = rs.18000

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