Question

Find the volume of the right circular cone with (i) radius 6 cm, height 7cm (ii) radius 3.4 cm , height 12cm

Answer 1

Answer:

Step-by-step explanation:

(1) r= 6 cm :  h= 7 cm

v= $\pi$r²h/3

 =3.14*(6)²*7/3

 =3.14*36*7/3

  =3.14*12*7

   =263.76 cubic cm

(2) r= 3.4cm  ; h=12cm

v= 3.14*(3.4)²*12/3

=3.14*11.56*4

=145.1936 cubic cm

Answer 2

1) VOLUME OF RIGHT CIRCULAR CONE:
= 1/3 × 22/7 × 6 × 6 × 7 = 264 cm2

2) VOLUME OF RIGHT CIRCULAR CONE :
= 1/3 × 22/7 × 3.4 × 3.4 × 12 = 22 × 11.56 × 4 / 7 = 1017.28 / 7 = 145.32... cm2