Question

a toy is in the form a hemisphre of radius 3.5 cm find the curved suface area andtotal surface area

Answer 1

Answer:

214.5cm²

Hope it helps you

Answer 2

Correct Question :

A toy is in the form a Hemisphere of radius 3.5 cm . Find the Curved Surface Area and Total Surface Area .

Given :

⬤ Radius of Hemisphere = 3.5 cm

To Find :

⬤ Curved Surface Area of Hemisphere .

⬤ Total Surface Area of Hemisphere .

Formula Used :

$\small\sf[\:{Curved\:Surface\:Area\:of\:Hemisphere=2\pi{r}^{2}\:]}$

Solution :

According to the Formula :

2πr²

2 × 22/7 × 3.5 × 3.5

22 × 25/10

770/10

77

Therefore , The Curved Surface Area of Hemisphere is 77 cm².

Formula Used :

$\small\sf[\:{Total\:Surface\:Area\:of\:Hemisphere=3\pi{r}^{2}\:]}$

Now :

According to the Formula :

3πr²

3 × 22/7 × 3.5 × 3.5

3 × 11 × 35/10

1155/10

115.5

Therefore , The Total Surface Area of Hemisphere is 115.5 cm² .