A hemispherical portion is cut from one face of a cubical block, such that diameter 'l' of hemisphere is equal to the edge of cube. Find the surface area of the remaining solid.
Answers
Answered by
0
ANSWER
Consider the diagram shown below.
It is given that a hemisphere of radius
2
l
is cut out from the top face of the cuboidal wooden block.
Therefore, surface area of the remaining solid
= surface area of the cuboidal box whose each edge is of length l − Area of the top of the hemispherical part + curved surface area of the hemispherical part
=6l
2
−πr
2
+2πr
2
=6l
2
−π(
2
l
)
2
+2π(
2
l
)
2
=6l
2
−
4
πl
2
+
2
πl
2
=
4
l
2
(24+π) sq.units
Answered by
0
Answer:
after putting the value of pie 22/7 then answer- 184.18 l^2 unit^2
Step-by-step explanation:
hope it's help u
Attachments:
Similar questions