Question

pls answer fast
qstn of 50 points

Answer 1

Answer:

Explanation:

Radius of cone  = 3.5 cm

Total height of the cone

--> (15.5 - 3.5) cm

--->12 cm

Step :- 2

---->Slant height of the cone

---->root of r^2+h^2=12.5cm

Step :- 3

T S A=C S A OF CONE +C S A 0F HEMISPHERE

CSA OF CONE =PI*R*L

                          =22/7 * 3.5 * 12.5 =22 * 0.5 * 12.5=  137.5 cm^2

C.S.A of hemisphere => 2\pi r^{2} =2 * 22/7 * (3.5)^2=  77 cm^

T S A=137.5 + 77 =214.5 cm^2

Answer 2

Holaaa Mate

Answer:

Radiys of the cone= 3.5cm

Total height of the cone=

15.5-3.5 = 12cm

Slant height of the cone

Root of r^2+ h^2= 12.5cm

T S A= C S A of cone+C S A of Hemisphere

= 22/7*3.5*12.5

=22*0.5*12.5 =137.5cm^2

C S A of Hemisphere

=2/pi r^2

2*22/7*(3.5)^2= 77cm^2

T S A = 137.5+77

=214.5cm^2

hope it helps..!!