Home - Ask TrueMaths!

0

Deepak BoraNewbie

Asked: August 31, 2020In: CBSE, Competition, ICSE, IIT

Argument of a Complex Number

0

Why does the Principal Argument of any Complex Number lie between -π to π. ? Isn’t that the Equivalent of ...Read more

0

Deepak BoraNewbie

Asked: August 29, 2020In: CBSE

A cylindrical vessel with internal diameter 10 cm and height 10.5 cm is full of water. A solid cone of base diameter 7 cm and height 6 cm is completely immersed in water. Find the volume of water i] displaced out of the cylinder ii] left in the cylinder

0

This is one of the important question from the cbse board exam because this question was asked in 2009 cbse ...Read more

0

Deepak BoraNewbie

Asked: August 29, 2020In: CBSE

A solid metallic sphere of diameter 28 cm is melted and recast into a number of smaller cones, each of diameter 4[2/3] cm and height 3 cm. Find the number of cones so formed.

0

In the given problem given shape is sphere. To find answer of this question need to use sphere volume formula. ...Read more

0

Deepak BoraNewbie

Asked: August 29, 2020In: CBSE

A milk container is made of metal sheet in the shape of frustum of a cone whose volume is 1045937 cm³ . The radii of its lower and upper circular ends are 8 cm and 20 cm, respectively. Find the cost of metal sheet used in making the container at the rate of 1.40 per cm².

0

This question was asked in 2010 cbse board exam. Question from RS Aggarwal book chapter volume and surface area of ...Read more

0

Deepak BoraNewbie

Asked: August 29, 2020In: CBSE

A bucket is in the form of a frustum of a cone with a capacity of 12308.8 cm³ of water. The radii of the top and bottom circular ends are 20 cm and 12 cm, respectively. Find the height of the bucket.

0

In the given problem use π = 3.14 Problem from RS Aggarwal book, problem number 37, page number 829, exercise 17D, ...Read more

0

Deepak BoraNewbie

Asked: August 29, 2020In: CBSE

If the radii of the circular ends of a bucket 28 cm high, are 28 cm and 7 cm, then find its capacity and total surface area.

0

This is one of the important question from the cbse board exam because this question was asked in 2011 cbse ...Read more

0

Deepak BoraNewbie

Asked: August 29, 2020In: CBSE

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.

0

This question was asked in 2012 cbse board exam. Question from RS Aggarwal book chapter volume and surface area of ...Read more

Share & grow the world's knowledge!

Discy Latest Questions

Argument of a Complex Number

A cylindrical vessel with internal diameter 10 cm and height 10.5 cm is full of water. A solid cone of base diameter 7 cm and height 6 cm is completely immersed in water. Find the volume of water i] displaced out of the cylinder ii] left in the cylinder

A solid metallic sphere of diameter 28 cm is melted and recast into a number of smaller cones, each of diameter 4[2/3] cm and height 3 cm. Find the number of cones so formed.

A milk container is made of metal sheet in the shape of frustum of a cone whose volume is 1045937 cm³ . The radii of its lower and upper circular ends are 8 cm and 20 cm, respectively. Find the cost of metal sheet used in making the container at the rate of 1.40 per cm².

A bucket is in the form of a frustum of a cone with a capacity of 12308.8 cm³ of water. The radii of the top and bottom circular ends are 20 cm and 12 cm, respectively. Find the height of the bucket.

If the radii of the circular ends of a bucket 28 cm high, are 28 cm and 7 cm, then find its capacity and total surface area.

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.