Question

Total area of a hemisphere if the radius is 8 cm.

Answer 1

Answer:

603.4

Step-by-step explanation:

The total surface area of hemisphere of radius 8 cm = 603.4.

Answer 2

Answer:

The total surface area of hemisphere of radius 8 cm = 603.4 cm^{2}cm

2

Step-by-step explanation:

Given,

The radius of hemisphere (r) = 8 cm

To find, the total surface area of hemisphere of radius 8 cm = ?

We know that,

The total surface area of hemisphere = 3\pi r^23πr

2

= 3\times \dfrac{22}{7}\times 8^23×

7

22

×8

2

= 3\times \dfrac{22}{7}\times 643×

7

22

×64

= 192 × 3.14857 cm^{2}cm

2

= 603.4 cm^{2}cm

2

∴ The total surface area of hemisphere of radius 8 cm = 603.4 cm^{2}cm

2

Thus, the total surface area of hemisphere of radius 8 cm = 603.4 cm^{2}cm

2