The radius of a sphere is 2r, then its volume will be

Surface Area & Volume_1

Quiz
•
Mathematics
•
9th Grade
•
Hard
Nasruddin .
Used 1+ times
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25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The total surface area of a cube is 96 cm2. The volume of the cube is:
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A cone is 8.4 cm high and the radius of its base is 2.1 cm. It is melted and recast
into a sphere. The radius of the sphere is
4.2 cm
2.1 cm
2.4 cm
1.6 cm
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a cylinder, radius is doubled and height is halved, curved surface area will be
halved
doubled
same
four times
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The radii of two cylinders are in the ratio of 2:3 and their heights are in the ratio of
5:3. The ratio of their volumes is:
10 : 17
20 : 27
17 : 27
20 : 37
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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