Question

total surface area of a cone of radius 5cm and slant height 10 cm is. full process​

Answer 1

Answer:

The correct option is A

235.5

c

m

2

Given: Radius of the cone, r = 5 cm

Slant height of the cone, l = 10 cm

Total surface area of the cone

=

π

r

(

r

+

l

)

=

π

×

5

(

5

+

10

)

=

5

π

×

15

=

75

π

=

235.5

cm

2

∴

Total surface area of the cone is

235.5

cm

2

.

Answer 2

Answer:

The total surface area of the cone will be 235.5 cm²

Step-by-step explanation:

Here the radius and the slant height of a cone is given

radius = 5 cm

slant height = 10 cm

We have to find the total surface area of the cone

total surface area of cone = πr ( r + l ), where l is the slant height

                                           = 3.14 × 5 ( 5 + 10 )

                                           = 3.14 × 5 × 15

                                            = 235.5 cm²