Problem 1:
The lateral surface area of a cuboid whose length, width and height are 2a, 2b and 2c respectively is
a) 2(ab + bc + ca) b) 4(ab + bc + ca)
c) 8(a + b) c d) none of these
Problem 2 :
The sum of the areas of all faces (excluding top and bottom) of a cuboid is the ___________ of the cuboid.
a) Volume b) lateral surface area
c) Total surface area d) none of these
Problem 3 :
The volume of a cuboid whose length, breadth and height are 2a, 3a and 4a is
a) 24a² b) 24a³ c) 12a³ d) none of these
Problem 4 :
Find the height of a cuboid whose volume is 756 cm³ and base area is 63 cm²?
Problem 5 :
The dimension of a cuboid are in the ratio of 2:3:4 and its total surface area is 280 m². Find the dimensions.
Problem 6 :
A cuboid is 40 cm × 20 cm × 10 cm. what would be the side of a cube having the same volume?
a) 20 cm b) 40 cm c) 10 cm d) 30 cm
Problem 7 :
A cuboid has a volume of 3000 cm³, with height 15 cm and length 20 cm. Find the area of the upper surface.
Problem 8 :
The sum of length, breadth and depth of a cuboid is 19 cm and the diagonal is 5√5. Find its surface area.
Problem 9 :
Three cubes with sides in the ratio 3:4:5 are melted to form a single cube whose diagonal is 12√3 cm. find the sides of the cube.
Problem 10 :
The bottom of a tank measures 50 m × 40 m. Find its depth if it contains 4000 m³ of water.
Problem 11 :
The volume of a rectangular prism whose length, breadth and height are 2a, 3a and 4a is.
a) 24a^{2} b) 24a^{3} c) 12a^{3} d) none of these
Problem 12 :
The surface area of a cuboid is 1372 sq. cm. If its dimensions are in the ratio of 4 : 2 : 1, find the volume.
Problem 13 :
The volume of a rectangular prism is 24 ft^{3}, the height is 2, what are three possible measures for the length and width of the prism?
Problem 14 :
A box of tissues has a length of 11.2 cm, a width of 11.2 cm and a height of 13 cm. What is the volume of the tissue box ?
1) 8c(a + b) 2) Lateral surface area 3) V = 24a³ 4) h = 12 cm 5) 4.6 m, 6.9 m and 9.2 m 6) a = 20 cm 7) 200 cm² |
8) 236 cm² 9) 9 cm x 8 cm x 10 cm 10) h = 2 m 11) 24a^{3} 12) 2744 cm^{3} 13) (3, 4) (2, 6) and (1, 12) 14) 1630.72 cm^{3} |
May 21, 24 08:51 PM
May 21, 24 08:51 AM
May 20, 24 10:45 PM