Chapter 13 – Surface Areas and Volumes
A fez, the cap used by the Turks, is shaped like the frustum of a cone . If its radius on the open side is 10 cm, radius at the upper base is 4 cm and its slant height is 15 cm, find the area of material used for making it.
06
Oct
A fez, the cap used by the Turks, is shaped like the frustum of a cone . If its radius on the open side is 10 cm, radius at the upper base is 4 cm and its slant height is 15 cm, find the area of material used for making it. A fez find the [...]
The slant height of a frustum of a cone is 4 cm and the perimeters (circumference) of its circular ends are 18 cm and 6 cm. Find the curved surface area of the frustum.
06
Oct
The slant height of a frustum of a cone is 4 cm and the perimeters (circumference) of its circular ends are 18 cm and 6 cm. Find the curved surface area of the frustum. The slant height of a frustum of a cone is 4 cm and the perimeters (circumference) of its circular ends are [...]
A drinking glass is in the shape of a frustum of a cone of height 14 cm. The diameters of its two circular ends are 4 cm and 2 cm. Find the capacity of the glass.
06
Oct
A drinking glass is in the shape of a frustum of a cone of height 14 cm. The diameters of its two circular ends are 4 cm and 2 cm. Find the capacity of the glass. A drinking glass is in the shape of a frustum of a cone of height 14 cm. The diameters [...]
A farmer connects a pipe of internal diameter 20 cm from a canal into a cylindrical tank in his field, which is 10 m in diameter and 2m deep. If water flows through the pipe at the rate of 3 km/h, in how much time will the tank be filled?
06
Oct
A farmer connects a pipe of internal diameter 20 cm from a canal into a cylindrical tank in his field, which is 10 m in diameter and 2m deep. If water flows through the pipe at the rate of 3 km/h, in how much time will the tank be filled? A farmer connects a pipe [...]
Water in a canal, 6 m wide and 1.5 m deep, is flowing with a speed of 10 km/hr. How 3 much area will it irrigate in 30 minutes, if 8 cm of standing water is needed?
06
Oct
Water in a canal, 6 m wide and 1.5 m deep, is flowing with a speed of 10 km/hr. How 3 much area will it irrigate in 30 minutes, if 8 cm of standing water is needed? 6 m wide and 1.5 m deep if 8 cm of standing water is needed? is flowing with [...]
A cylindrical bucket, 32 cm high and with radius of base 18 cm, is filled with sand. This bucket is emptied on the ground and a conical heap of sand is formed. If the height of the conical heap is 24 cm, then find the radius and slant height of the heap.
06
Oct
A cylindrical bucket, 32 cm high and with radius of base 18 cm, is filled with sand. This bucket is emptied on the ground and a conical heap of sand is formed. If the height of the conical heap is 24 cm, then find the radius and slant height of the heap. 32 cm high [...]
How many silver coins, 1.75cm in diameter and of thickness 2mm, must be melted to form a cuboid of dimensions 5.5cm×10cm×3.5cm?
06
Oct
How many silver coins, 1.75cm in diameter and of thickness 2mm, must be melted to form a cuboid of dimensions 5.5cm×10cm×3.5cm? 1.75cm in diameter and of thickness 2mm How many silver coins must be melted to form a cuboid of dimensions 5.5cm×10cm×3.5cm? October 6, 2020 Category: Chapter 13 - Surface Areas and Volumes , Maths [...]
A container shaped like a right circular cylinder having diameter 12 cm and height 15 cm is full of ice cream. The ice cream is to be filled into cones of height 12 cm and diameter 6 cm, having a hemispherical shape on the top. Find the number of such cones which can be filled with ice cream.
06
Oct
A container shaped like a right circular cylinder having diameter 12 cm and height 15 cm is full of ice cream. The ice cream is to be filled into cones of height 12 cm and diameter 6 cm, having a hemispherical shape on the top. Find the number of such cones which can be filled [...]
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A container shaped like a right circular cylinder having diameter 12 cm and height 15 cm is full of ice cream. The ice cream is to be filled into cones of height 12 cm and diameter 6 cm ,
having a hemispherical shape on the top. Find the number of such cones which can be filled with ice cream. ,
A well of diameter 3 m is dug 14 m deep. The earth taken out of it has been spread evenly all around it in the shape of a circular ring of width 4 m to form an embankment. Find the height of the embankment.
06
Oct
A well of diameter 3 m is dug 14 m deep. The earth taken out of it has been spread evenly all around it in the shape of a circular ring of width 4 m to form an embankment. Find the height of the embankment. Two cubes each of volume 64 cm^3 are joined end [...]
A 20 m deep well with diameter 7 cm is dug and the earth from digging is evenly spread out to form a platform 22 m by 14 m. Find the height of the platform.
06
Oct
A 20 m deep well with diameter 7 cm is dug and the earth from digging is evenly spread out to form a platform 22 m by 14 m. Find the height of the platform. A 20 m deep well with diameter 7 cm is dug and the earth from digging is evenly spread out [...]