Surface Area of Combined Figures
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Q.
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2 cubes each of volume 64 cm3 are joined end to end. Find the surface area of the resulting cuboid (in cm2)
Q. A water †an k 11m × 6m × 5m is full of water . The †an k is emptied through a pipe of cross section 33 cm ^2 in 20 hours . Find the rate of flow of water ( in kmph
Q. Water is pouring into a reservoir at the rate of 60 litres per minute. If the volume of the reservoir is 108 cubic metres, find the number of hours it will take to fill the reservoir.
Q. The lateral surface area of a hollow cylinder is 4, 224 cm2. It is cut along its height and formed a rectangular sheet of width 33 cm. Find the perimeter of the rectangular sheet.
Q. A toy is in the form of a cone of radius 3.5 cm mounted on a hemisphere of same radius. The total height of the toy is 15.5 cm . Find the total surface area of the toy.
Q.
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2 cubes each of volume 64 cm3 are joined end to end. Find the surface area of the resulting cuboid (in cm2)
Q. Two cubes of edge 4 cm each are joined end to end to form a cuboid. Find the volume and the total surface area of the cuboid.
- 136 cm3
- 132 cm3
- 125 cm3
- 128 cm3
Q. From a solid cylinder of height 4 cm and radius 3 cm, a conical cavity of height 4 cm and of base radius 3 cm is hollowed out. What is the total surface area of the remaining solid?
- 15π square cm
- 22π square cm
- 33π square cm
- 48π square cm
Q. Ritika has a square flower garden of area 49a2−81 sq. m. On representing the above area in the simplest form, it will be equal to sq. m.
- (7a + 7)(9a - 9)
- (7a + 9)(7a - 9)
- (9a + 7)(7a - 9)
- (9a + 7)(9a - 7)
Q. Find the volume of a cone-shaped figure if its base has a radius of 7 cm and its slant height is 25 cm.
Q. Ritika has a square flower garden of area 49a2−81 sq. m. On representing the above area in the simplest form, it will be equal to sq. m.
- 12
- 14
- 16
- 18
Q. Find the LSA of a cube having side length of 3 cm.
- 9 sq. cm
- 54 sq. cm
- 36 sq. cm
- 18 sq. cm
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A toy is in the shape of a right circular cylinder with a hemisphere on one end and a cone on the other. The height and radius of the cylindrical part are 13 cm and 5 cm respectively. The radii of the hemispherical and conical parts are the same as that of the cylindrical part. Calculate the surface area of the toy( in cm2) if the height of the conical part is 12 cm.