Question

please answer this questions

I will mark as brainlist answer ​

Answer 1

5)volume of cylinder is πr×r×h: volume of cone 1/3π×r×r×h

1:1/3 i.e 3:1

6)volume of hemisphere=2/3πr×r×r

=2/3×22/7×3.5×3.5×3.5

=89.8cm cube

7)volume of sphere=4/3πr×r×r

=4/3×22/7×2.1×2.1×2.1

=38.8cm cube

9)CSA of hemisphere=2πr×r

=2×22/7×3.5×3.5

=77cm.square

10)CSA of cone = πrl

where π=22/7

R=RADIUS

L= SLANT HEIGHT

HOPE IT HELPS:)