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प्रश्न
Outer surface area of a cylindrical juice glass with radius 7 cm and height 10 cm, is ______.
विकल्प
440 sq cm
594 sq cm
748 sq cm
1540 sq cm
MCQ
रिक्त स्थान भरें
उत्तर
Outer surface area of a cylindrical juice glass with radius 7 cm and height 10 cm, is 440 sq cm.
Explanation:
Outer surface area = lateral surface area of cylinder
= `2πrh`
= `2 xx 22/7 xx 7 xx 10`
= 440 sq cm
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