ENGLISH HINDI
Q.1
The difference between the interior and exterior angles for a regular polygon at a vertex is 150 ° . Find the number of sides of this regular polygon ?



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Q.2
If each face is of 3cm of a tetrahedrom then it’s volume is :



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Q.3
The base of a solid right prism is triangular with sides 9 cm, 12 cm and 15 cm respectively. If the height of the prism is 5 cm then total surface area of the prism will be ?



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Q.4
The areas of three faces of a cuboid are 12 cm 2 , 20 cm 2 & 15 cm 2 respectively. Find the volume in cm 3 .



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Q.5
The difference between the radii of a bucket is 20 cm. if height of the bucket is 15 cm then find out the lateral height ?



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Q.6
If each angle of a regular polygon is equal to the 3 5 times of two right angles then no. of sides are - ?



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Q.7
The base of a right pyramid is a square . if length of diagonal of the base is 24 2 & volume of the pyramid is 1728 m 3 then it’s height will be - ?



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Q.8
For a right prism; the base is an equilateral triangle with side 6 cm. if volume of the prism is 108 3 cm 3 then it’s height is - ?



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Q.9
If each interior angle of a regular polygon is 144 ° . Then no. of sides will be ?



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Q.10
For a right prism the base is an equilateral Δ of area 173 cm 2 .Volum of right prism 10380 cm 3 .  Then what will be the lateral surface area of that prism ? ( 3 =1.73)



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Q.11
A prism is of hexagonal base of side 2a cm. If each lateral side of that prism is 5a 2 cm long then the volume of that prism is :



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Q.12
If the perimeters of a hexagon & an equilateral Δ are equal. Then what will be the ratio of their areas ?



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Q.13
The ratio of number of sides of two regular polygon is 5 : 4 and the difference between each interior angle is 9 ° . Then find the no. of sides ?



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Q.14
If each side of a tetrahedron is 12 cm long then the volume of tetrahedron will be  ?



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Q.15
If the radii of a bucket are 28 cm & 7 cm and it’s height is 45 cm then the capacity of bucket in cm 3 is - ( π= 22 7 )



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Q.16
A hexagon is formed after cutting the vertices of an equilateral Δ of side 6 cm. Find out the area of this hexagon (in cm 2 ) ?



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Q.17
Ratios between the no. of sides and each interior angles for two regular polygons are 5 : 6 and 24 : 25 respectively. Then what are the no. of sides of those polygons ?



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Q.18
The base of a right prism is a trapezium. The parallel sides are 8 cm & 14 cm long. If the distance between both is 8 cm & Volume of this prism is 1056 cm 3 then height is : -?



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Q.19
If base of a right pyramid is a square of side 40 cm. If volume of the pyramid is 8000 cm 3 then height of the pyramid is -?



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Q.20
If each interior angle of a regular polygon is double of it’s exterior angle then no. of sides is -?



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