total area of a solid semisphere is 147 CM square find the base radius of the sami-sphere
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total area of a solid semisphere is 147 CM square find the base radius of the sami-sphere
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Answer:
Radius= 2.28 cm
Step-by-step explanation:
Verified answer
surface area of semisphere is 2πr^2.
largest circle in a semisphere is it's base.
radius of the largest circle is √SA/2π^2
= √147/(2×22/7)^2
=√147/(2×22/7×22/7)
=√147/ 19.75510
=12.1345/19.75510
= 1.613 cm approx.
but if we take π3.14.
so it will be 1.601.
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