Question

Please answer itgvbbbbbb​

Answer 1

Answer:

The side of the cube is expressed in 4 significant figures.

So, area and volume also contains 4 significant figures.

Hence, option (A) is correct.

Area =6a

2

=32.90 m

2

Volume =a

3

=12.85 m

3

hope it helps you

Answer 2

Step-by-step explanation:

A rectangular paper of width 14 c is rolled along its width to form a cylinder.

Height of cylinder = h= 14 cm= width of rectangular paper.

Therefore,

Radius of cylinder = r= 20 cm.

Volume of the cylinder = πr² h

\implies \: \frac{22}{7} \times 20 \times 20 \times 14⟹

7

22

×20×20×14

\space

\bf \red{\implies }\: \green{17600 \pink{{cm}^{3} }}⟹17600cm

3

∴ Volume of the cylinder = 17600 cm³

Hope it helps!!