Worksheet (mensuration)
III term
CBSE VIII
1. Find the area of the the diagonal of
a rhombus are 24cm and 25 cm what is the area?
2. Area of a trapezium shaped field is
960 sq cm. the distance between two parallel side is 30 cm. and one of the
parallel side is 15cm. Find the other parallel side.
3. A cuboidal box is 60 cm x 70cm x 80cm.
find the cost of the cardboard required to make 20 such tins. If the cost of
cardboard is Rs. 25 per sq meter.
4. Internal measures of cuboidal room
are 24m x 12m x 14m. Find the total cost of white washing all four walls of
room. Of the cost of white washing is Rs. 5 per sq m. what will be the cost of
white washing if the ceiling of the room is also white washed.
5. A godown is in the form of a cuboid
of measures 30m X 60 m X 72m how many cubical boxes can be stored in it if the
side of one box is 8 cm.(app)
6. Volume of the cylinder is 588cm3
and height is 7cm find the radius
7. A rectangular sheet of length 20 cm
and breadth 16 cm folded along its length and form a cylinder find the radius
and volume of the cylinder
8. A pipe is in the form of a cylinder
with thickness 2cm and inner radius 3 cm and length 12 cm find the total surface area and volume of
iron if density of iron is 0.9gm per cm3 (Hot)
9.
In a hall there are 16 pillars in the form of a cylinder of radius 145cm
and 15m and 12 pillars in the form a
cuboid of dimensions 127cm X 86c m X 15m Find the area of the pillars to be
painted if Rs.14 per 2 m 2 (app)
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