Question

5 cubes of side 3 cm each are placed side by side and stuck together to form of coboid. if other surface into painted at rupees per kilometre square find the total cost of painting​

Answer 1

Step-by-step explanation:

length= 20cm

breadth=5 cm

height=5 cm

tsa of cuboid=2(20*5)+(20*5)+(5*5)

2(100+100+25)

2(225)

450 cm

cost=450*300

=135000 rs

.

Answer 2

Answer:

length= 20cm

breadth=5 cm

height=5 cm

tsa of cuboid=

$2(20 \times 5 \times) + (20 \times 5) + (5 \times 5)$

$2 \times 100 \times 100 \times 25$

$21225$

$450 \: cm$

$cost \: 450 \times 300$

$rs \: 135000$

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