Jaclin

Asked: November 4, 2020In: Class 9

A heap of wheat is in the form of a cone whose diameter is 10.5 m and height is 3 m. Find its volume. The heap is to be covered by canvas to protect it from rain. Find the area of the canvas required.

NCERT Solutions for Class 9 Maths Chapter 13 Important NCERT Questions Surface Areas and Volumes NCERT Books for Session 2022-2023 CBSE Board, UP Board and Other state Boards EXERCISE 13.7 Page No:233 Questions No:9

Kavita Kaushik

Asked: November 4, 2020In: Class 9

Find the volume of a sphere whose radius is (i) 7 cm (ii) 0.63 m

NCERT Solutions for Class 9 Maths Chapter 13 Important NCERT Questions Surface Areas and Volumes NCERT Books for Session 2022-2023 CBSE Board, UP Board and Other state Boards EXERCISE 13.8 Page No:236 Questions No:1

Kavita Kaushik

Asked: November 4, 2020In: Class 9

Find the amount of water displaced by a solid spherical ball of diameter (i) 28 cm (ii) 0.21 m

NCERT Solutions for Class 9 Maths Chapter 13 Important NCERT Questions Surface Areas and Volumes NCERT Books for Session 2022-2023 CBSE Board, UP Board and Other state Boards EXERCISE 13.8 Page No:236 Questions No:2

Kavita Kaushik

Asked: November 4, 2020In: Class 9

The diameter of a metallic ball is 4.2 cm. What is the mass of the ball, if the density of the metal is 8.9 g per cm³?

NCERT Solutions for Class 9 Maths Chapter 13 Important NCERT Questions Surface Areas and Volumes NCERT Books for Session 2022-2023 CBSE Board, UP Board and Other state Boards EXERCISE 13.8 Page No:236 Questions No:3

Kavita Kaushik

Asked: November 4, 2020In: Class 9

The diameter of the moon is approximately one-fourth of the diameter of the earth. What fraction of the volume of the earth is the volume of the moon?

NCERT Solutions for Class 9 Maths Chapter 13 Important NCERT Questions Surface Areas and Volumes NCERT Books for Session 2022-2023 CBSE Board, UP Board and Other state Boards EXERCISE 13.8 Page No:236 Questions No:4

Kavita Kaushik

Asked: November 4, 2020In: Class 9

How many litres of milk can a hemispherical bowl of diameter 10.5 cm hold?

NCERT Solutions for Class 9 Maths Chapter 13 Important NCERT Questions Surface Areas and Volumes NCERT Books for Session 2022-2023 CBSE Board, UP Board and Other state Boards EXERCISE 13.8 Page No:236 Questions No:5

Kavita Kaushik

Asked: November 4, 2020In: Class 9

Twenty-seven solid iron spheres, each of radius r and surface area S are melted to form a sphere with surface area S′. Find the:

NCERT Solutions for Class 9 Maths Chapter 13 Important NCERT Questions Surface Areas and Volumes NCERT Books for Session 2022-2023 CBSE Board, UP Board and Other state Boards EXERCISE 13.8 Page No:236 Questions No:9 (i) radius r ′ of the new ...

Kavita Kaushik

Asked: November 4, 2020In: Class 9

A capsule of medicine is in the shape of a sphere of diameter 3.5 mm. How much medicine (in mm³) is needed to fill this capsule?

NCERT Solutions for Class 9 Maths Chapter 13 Important NCERT Questions Surface Areas and Volumes NCERT Books for Session 2022-2023 CBSE Board, UP Board and Other state Boards EXERCISE 13.8 Page No:236 Questions No:10

Kavita Kaushik

Asked: November 4, 2020In: Class 9

The diameter of a sphere is decreased by 25%. By what per cent does its curved surface area decrease?

NCERT Solutions for Class 9 Maths Chapter 13 Important NCERT Questions Surface Areas and Volumes NCERT Books for Session 2022-2023 CBSE Board, UP Board and Other state Boards EXERCISE 13.9 Page No:237 Questions No:3

Kiran Chaudhary

Asked: November 4, 2020In: Class 9

The following number of goals were scored by a team in a series of 10 matches: 2, 3, 4, 5, 0, 1, 3, 3, 4, 3 Find the mean, median and mode of these scores.

NCERT Solutions for Class 9 Maths Chapter 13 Important NCERT Questions Statistics NCERT Books for Session 2022-2023 CBSE Board, UP Board and Other state Boards EXERCISE 14.4 Page No:269 Questions No:1

Jaclin

A heap of wheat is in the form of a cone whose diameter is 10.5 m and height is 3 m. Find its volume. The heap is to be covered by canvas to protect it from rain. Find the area of the canvas required.

Find the volume of a sphere whose radius is (i) 7 cm (ii) 0.63 m

Find the amount of water displaced by a solid spherical ball of diameter (i) 28 cm (ii) 0.21 m

The diameter of a metallic ball is 4.2 cm. What is the mass of the ball, if the density of the metal is 8.9 g per cm³?

The diameter of the moon is approximately one-fourth of the diameter of the earth. What fraction of the volume of the earth is the volume of the moon?

How many litres of milk can a hemispherical bowl of diameter 10.5 cm hold?

Twenty-seven solid iron spheres, each of radius r and surface area S are melted to form a sphere with surface area S′. Find the:

A capsule of medicine is in the shape of a sphere of diameter 3.5 mm. How much medicine (in mm³) is needed to fill this capsule?

The diameter of a sphere is decreased by 25%. By what per cent does its curved surface area decrease?

The following number of goals were scored by a team in a series of 10 matches: 2, 3, 4, 5, 0, 1, 3, 3, 4, 3 Find the mean, median and mode of these scores.

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