Question

Kindly help me in this question​

Answer 1

Edge of the cube = 21cm

Radius of hemisphere= 21/2cm

Surface area of remaining solid= total surface area of cube -area of the top of hemisphere part+ csa of hemisphere

= 6a*a- πr*r +2πr

=6*21*21-22/7*21/2*21/2

= 2,992.5cm2

hope it is helpful

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