Plzz users answer this question its very urgent →→→ Q) A cylindrical container is surmounted by hemispherical lead of same radius. The internal height of the cylinder is 7 cm and radius is 3.5 cm. Find the Total Surface Area of the container excluding the base.
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The total area of the internal surface excluding the base
= Area of curved surface of the cylinder + area of curved surface of hemisphere
= 2πrh + 2πr2
= 2×22/7×3.5×7 + 2×22/7×3.5×3.5
= 154 + 77 = 231 m2. [Ans.]
= Area of curved surface of the cylinder + area of curved surface of hemisphere
= 2πrh + 2πr2
= 2×22/7×3.5×7 + 2×22/7×3.5×3.5
= 154 + 77 = 231 m2. [Ans.]
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