From the top of a 7 m high building, the angle of elevation of the top of a cable tower is 60 degree


Q: From the top of a 7 m high building, the angle of elevation of the top of a cable tower is 60° and the angle of depression of its foot is 45°. Determine…

As observed from the top of a 75 m high lighthouse from | Exercise 9.1 Class 10 Maths Question 13


Q: As observed from the top of a 75 m high lighthouse from the sea-level, the angles of depression of two ships are 30° and 45°. If one ship is exactly behind…

A straight highway leads to the foot of a tower A man standing at the top| Ex 9.1 Class 10 Maths Q15Q: A straight highway leads to the foot of a tower. A man...

Mary wants to decorate her Christmas tree | Class 9 Maths Chapter 13 Exercise 13.1 Example 1


Q: Mary wants to decorate her Christmas tree. She wants to place the tree on a wooden box covered with coloured paper with picture of Santa Claus on it (see Fig.…

Hameed has built a cubical water tank with lid for his house | Class 9 Maths Chapter 13 Example 2


Q: Hameed has built a cubical water tank with lid for his house, with each
outer edge 1.5 m long. He gets the outer surface of the tank excluding the base…

A plastic box 1 5 m long, 1 25 m wide and 65 cm deep | Class 9 Maths Chapter 13 Exercise 13.1 Q1


Q: A plastic box 1.5 m long, 1.25 m wide and 65 cm deep is to be made. It is to be open at the top. Ignoring the thickness of the plastic sheet, determine:…

2 cubes each of volume 64 cm 3 are joined end to end find the surface area of the resulting cuboid


Q: 2 cubes each of volume 64 cm 3 are joined end to end find the surface area of the resulting cuboid.


Do Subscribe for quality and free educational videos…

A vessel is in the form of a hollow hemisphere mounted by a hollow cylinde|Ex 13.1 Class 10 Maths Q2


Q: A vessel is in the form of a hollow hemisphere mounted by a hollow cylinder. The diameter of the hemisphere is 14 cm and the total height of the vessel…

A toy is in the form of a cone of radius 3 5 cm mounted on a hemisphere of same radius


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…

A cubical block of side 7 cm is surmounted by a hemisphere | Exercise 13.1 Class 10 Maths Q4


Q: A cubical block of side 7 cm is surmounted by a hemisphere. What is the greatest diameter the hemisphere can have? Find the surface area of the solid.


Do Subscribe…

A hemispherical depression is cut out from one face of a cubical | Exercise 13.1 Class 10 Maths Q5


Q: A hemispherical depression is cut out from one face of a cubical wooden block such that the diameter l of the hemisphere is equal to the edge of the cube.…

A medicine capsule is in the shape of a cylinder with two hemispheres | Exercise 13.1 Class 10 Maths Q6


Q: A medicine capsule is in the shape of a cylinder with two hemispheres stuck to each of its ends (see Fig. 13.10). The length of the entire capsule…

A solid is in the shape of a cone standing on a hemisphere with both their radii being | Exercise 13.2 Class 10 Maths Q1


Q: A solid is in the shape of a cone standing on a hemisphere with both their radii being equal to 1 cm and the height of the cone is…

A wooden article was made by scooping out a hemisphere | Exercise 13.1 Class 10 Maths Q9


Q: A wooden article was made by scooping out a hemisphere from each end of a solid cylinder, as shown in Fig. 13.11. If the height of the cylinder is 10 cm, and its…

A tent is in the shape of a cylinder surmounted by a conical top | Exercise 13.1 Class 10 Maths Q7


Q: A tent is in the shape of a cylinder surmounted by a conical top. If the height and diameter of the cylindrical part are 2.1 m and 4 m respectively, and…

A pen stand made of wood is in the shape of a cuboid with four conical | Exercise 13.2 Class 10 Maths Q4


Q: A pen stand made of wood is in the shape of a cuboid with four conical depressions to hold pens. The dimensions of the cuboid are 15 cm by 10 cm…

A vessel is in the form of an inverted cone Its height is 8 cm | Exercise 13.2 Class 10 Maths Q5


Q: A vessel is in the form of an inverted cone. Its height is 8 cm and the radius of its top, which is open, is 5 cm. It is filled with water up to the brim.…

A hemispherical tank full of water is emptied by a pipe at the rate of 3 4/7 | class 10 maths ch 13 example11

Example 11 : A hemispherical tank full of water is emptied by a pipe at the rate of 3(4/7) litres per second. How much time will it take to empty…

A gulab jamun, contains sugar syrup up to about 30% of its volume | Exercise 13.2 Class 10 Maths Q3


Q: A gulab jamun, contains sugar syrup up to about 30% of its volume. Find approximately how much syrup would be found in 45 gulab jamuns, each shaped like…

A solid consisting of a right circular cone of height 120 cm and radius | Ex 13.2 Class 10 Maths Q7


Q: A solid consisting of a right circular cone of height 120 cm and radius 60 cm standing on a hemisphere of radius 60 cm is placed upright in a right circular…