allery10 cm উচ্চতাৰ ব্যাসাৰ্ধ-7 cm চিলিণ্ডাৰ এটাৰ ওপৰত মিল থকা গোলাৰ্ধ থাকে। তলৰ অংশ বাদ দি উন্মুক্ত অঞ্চল? π = 22/7 ব্যৱহাৰ কৰক।
A594 cm²
B902 cm²
C748 cm²
D1056 cm²
Answer & Solution
Correct answer: C. 748 cm²
কেৱল চিলিণ্ডাৰৰ বক্ৰ অঞ্চল আৰু গোলাৰ্ধৰ বক্ৰ অঞ্চলহে উন্মুক্ত হয়: 440 + 308 = 748 চে.মি. ²।
Keep practising Mensuration
Browse all Mensuration questions for RPF Constable, or explore more Arithmetic topics.
Related questions
Mensuration: choose the measureA circular sector of radius 21 cm has perimeter 86 cm. Find its area; use π = 22/7.A rhombus has diagonals 16 cm and 30 cm. What are its area and perimeter?A trapezium has parallel sides 18 m and 30 m, with height 10 m. Paving costs ₹12 per m². TA full cylinder (r=6,h=8 cm) contains a solid cone of the same r,h. Pour its water into a A radius-6 cm sphere is melted into cones of radius 2 cm and height 3 cm, with no loss. HoA hemispherical dome has radius 7 cm. Its curved covering needs how much material? Use π =A spherical ball has radius 3 cm. How many cubic centimetres does it occupy? Use π = 3.14.