3D Mensuration test 7 Welcome to your 3D Mensuration test 7 Name Email 1 .If each edge of a cube is increased by 50%, the percentage increase in its surface area is (a) 150% (b) 75% (c) 100% (d) 125% None 2.If the radius of a sphere be doubled, then the percentage increase in volume is (a) 500% (b) 700% (c) 600% (d) 800% None 3 . Find the radius of maximum size sphere which can be inscribed or put in a cone whose base radius and height are 6cm and 8cm respectively? (a)4cm (b) 5cm (c) 3cm (d) None of these None 4.The base of a right pyramid is a square of side 40 cm long. If the volume of the pyramid is 8000 cm3 , then its height is : (a) 5 cm (b) 10 cm (c) 15 cm (d) 20 cm None 5 .The perimeter of the triangular base of a right prism is 15 cm and radius of the incircle of the triangular base is 3 cm. If the volume of the prism be 270 cm3 then the height of the prism is (a)6 cm (b) 7.5 cm (c)10 cm (d) 12 cm None 6 .The base of a right pyamid is a square of side 16 cm long . If its height be 15 cm, then the area of the lateral surface in square cm is : (a)136 (b) 544 (c)800 (d) 1280 None 7 .The height of a right prism with a square base is 15 cm. If the area of the total surface of the prism is 608 sq. cm, its volume is (a)910 cm3 (b) 920 cm3 (c)960 cm3 (d) 980 cm3 None 8.A prism has as the base a right angled triangle whose sides adjacent to the right angles are 10 cm and 12 cm long. The height of the prism is 20 cm . the density of the material of the prism is 6gm/cubic cm. the weight of the prism is (a)6.4 kg (b)7.2 kg (c)3.4 kg (d)4.8 kg None 9 .If the slant height of a right pyramid with square base is 4 metre and the total slant surface of the pyramid is 12 square metre, then the ratio of total slant surface and area of the base is : (a) 16 : 3 (b) 24 : 5 (c) 32 : 9 (d) 12 : 3 None 10 .The base of right prism is a triangle whose perimeter is 28 cm and the inradius of the triangle is 4 cm. If the volume of the prism is 366 cc, then its height is (a) 6 cm (b) 8 cm (c) 4 cm (d) None of these None 11.If the base of a right pyramid s triangle of sides 5 cm, 12 cm and 13 cm and its volume is 330 cm, then its height (in cm) will be (a) 33 (b) 32 (c) 11 (d) 22 None 12 .A right pyramid stands on a square base of side 16 cm and its height is 15 cm. The area (in cm2 ) of its slant surface is (a) 514 (b) 544 (c) 344 (d) 444 None 13.The base of a right prism is a right angled triangle whose sides are 5 cm, 12 cm and 13 cm. If the total surface area of the prism is 360 cm2 , then its height (in cm) is (a) 10 (b) 12 (c) 9 (d) 11 (a) 10 (b) 12 (c) 9 (d) 11 None 14.The height of the right pyramid whose area of the base is 30 m2 and volume is 500 m2 is (a) 50 m (b) 60 m (c) 40 m (d) 20 m None 15.The base of a prism is a right angled triangle with two sides meeting at right angle are 5 cm and 12 cm. The height of the prism is 10 cm. The total surface area of the prism is (a) 360 sq. cm (b) 300 sq. cm (c) 330 sq. cm (d) 325 sq. cm None 16 .The radius of a cylinder is 10 cm and height is 4 cm. The number of centimetres that may be added either to the radius or to the height to get the same increase in the volume of the cylinder is : (a)25 (b)4 (c) 5 (d) 16 None 17 .If the base of right prism remains same and the lateral edges are halved, then its volume will be reduced by (a) 33.33% (b) 50% (c) 25% (d) 66% None 18 . Base of a right pyramid is a square of side 10 cm. If the height of the pyramid is 12 cm, then its total surface area is (a)360 cm² (b)400 cm² (c)460 cm² (d) 260 cm² None 19 .A right prism has a triangular base whose sides are 13 cm, 20 cm and 21 cm, If the altitude of the prism is 9 cm, then its volume is (a)1143 cm³ (b) 1314 cm³ (c)1413 cm³ (d) 1134 cm³ None 20. Base of a prism of height 10 cm is square. Total surface area of the prism is 192 sq. cm. The volume of the prism is (a) 120 cm3 (b) 640 cm3 (c) 90 cm3 (d) 160 cm3 None Time's up
