Question

radius 3.5cm,height 12cm​

Answer 1

Answer:

461.58

Step-by-step explanation:

πr²h is the formula in cylinder 3.5×3.5=12.25

12.25×3.14=38.465

38.465×12= 461.58

Answer 2

Step-by-step explanation:

Here, r= 3.5cm and h=12cm

volume of the cone = 1/3 nr2h

= 1/3×22/7×3.5×3.5×12cm square

1×22/7×35/10×35/10×4cm square

now fo the cancelation of 7×1=7 7×5=35

1×22×5/10×35/10×4cm square

154 cm square is the answer