s find the rate at which surface area and volume is increasing when l = 2 metre.

Questions

adityaburi999 @adityaburi999

December 2023 1 2 Report

sides of Cube are expending at 2 m/s find the rate at which surface area and volume is increasing when l = 2 metre.

Answers & Comments

Answer:

Surface area of cube

S

=

6

a

2

d

S

d

t

=

12

a

d

a

d

t

⇒

d

a

d

t

=

1

540

cm/sec

Volume of cube

V

=

a

3

⇒

d

V

d

t

=

3

a

2

d

a

d

t

⇒

d

V

d

t

=

45

c

m

3

/

s

e

c

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