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Questions by krutika
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The volume of a cube is 64 `cm^3`. Its surface area
asked
Jan 17, 2022
in
8th-maths
marks1
chapter11
#mcq
0
votes
0
answers
If the diagonals of a rhombus get doubled, then the area of the rhombus becomes __________ its original
asked
Jan 17, 2022
in
8th-maths
marks1
chapter11
#fib
0
votes
0
answers
The curved surface area of a cylinder is reduced by ____________ per cent if the height is half of the original
asked
Jan 17, 2022
in
8th-maths
marks1
chapter11
#fib
0
votes
0
answers
A trapezium with 3 equal sides and one side double the equal side can be divided into __________ equilateral triangles of _______
asked
Jan 17, 2022
in
8th-maths
marks1
chapter11
#fib
0
votes
0
answers
Curved surface area of a cylinder of radius h and height r is
asked
Jan 17, 2022
in
8th-maths
marks1
chapter11
#fib
0
votes
0
answers
The areas of any two faces of a cuboid are
asked
Jan 17, 2022
in
8th-maths
marks1
chapter11
#tnf
0
votes
0
answers
The surface area of a cube formed by cutting a cuboid of dimensions `2 xx 1 xx 1 in 2` equal parts is 2 sq.
asked
Jan 17, 2022
in
8th-maths
marks1
chapter11
#tnf
0
votes
0
answers
Find the area of the shaded portion in the following
asked
Jan 17, 2022
in
8th-maths
marks2
chapter11
#sub
0
votes
0
answers
Find the volume of each of the given figure if volume = base area `xx`height.
asked
Jan 17, 2022
in
8th-maths
marks2
chapter11
#sub
0
votes
0
answers
How many cubic metres of earth must be dug to construct a well 7 m deep and of diameter 2.8
asked
Jan 17, 2022
in
8th-maths
marks3
chapter11
#sub
0
votes
0
answers
If the length of each edge of a cube is tripled, what will be the change in its
asked
Jan 17, 2022
in
8th-maths
marks3
chapter11
#sub
0
votes
0
answers
A carpenter makes a box which has a volume of 13,400 `cm^3`. The base has an area of 670 `cm^2`. What is the height of the
asked
Jan 17, 2022
in
8th-maths
marks3
chapter11
#sub
0
votes
0
answers
The following expressions are the areas of rectangles. Find the possible lengths and breadths of these rectangles. `x^2 + 19x –
asked
Jan 17, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
The following expressions are the areas of rectangles. Find the possible lengths and breadths of these rectangles. `–121p^3q^3r^3 -:
asked
Jan 17, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Perform the following divisions: `(– qrxy + pryz – rxyz) -: (–
asked
Jan 17, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Factorise the expressions and divide them as directed: `(x^2 – 22x + 117) -: (x –
asked
Jan 17, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
The curved surface area of a cylinder is `2pi (y^2 – 7y + 12)` and its radius is (y – 3). Find the height of the cylinder (C.S.A. of cylinder
asked
Jan 17, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
The height of a triangle is `x^4 + y^4` and its base is 14xy. Find the area of the
asked
Jan 17, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Verify the following: `(ab + bc) (ab – bc) + (bc + ca) (bc – ca) + (ca + ab) (ca – ab) =
asked
Jan 17, 2022
in
8th-maths
marks3
chapter9
#sub
0
votes
0
answers
Verify the following: `(a + b) (a + b) (a + b) = a^3 + 3a^2b + 3ab^2 +
asked
Jan 17, 2022
in
8th-maths
marks3
chapter9
#sub
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