Question

Ques 1:-If the radius of a sphere is 2r then find its volume.
Ques 2:- If the diameter of base of cone is 30cm and its slant height is 25cm. Find its height.



need verified answer cuz tomorrow is exam❗❗❗​

Answer 1

Step-by-step explanation:

1. volume = 4/3πr^3

= 4/3 π× 8r^2

2. l^ 2= r^2 +h^ 2

(25)^ 2= (15)^2+h^ 2

625= 225 = h^ 2

625-225 = h^ 2

400= h^ 2

√ 400= h

20cm = h

{ l = slant height,h= height,r= radius}