Question

Find the volume of a cone having radius of its base 15 cm and height twice that of its radius of the base. (π = 3.14)

Answer 1

Answer:

7065

Step-by-step explanation:

r= 15 cm

h = 2×r

h = 2×15

h= 30 cm

now,

volume of cone = 1/3πr×r×h

= 1/3×3.14×15×15×30

= 7065 cm(cube)

Answer 2

Answer:

7065

Step-by-step explanation:

r=15cm ,

let the height of a cone be 2r

height=2×15cm=20cm

volume of a cone = 1/3π×r×r×h

= 1/3×3.14×15×15×30

= 1×3.14×5×15×30

=15.7×450

=7065