Secondary School (English Medium) (5 to 8) इयत्ता ७ - CBSE Question Bank Solutions for Mathematics

`(2/5)^3 ÷ (5/2)^3 = 1`

`(7/3)^2 xx (7/3)^5 = (7/3)^10`

Observe the following nutritional chart carefully:

Write an algebraic expression for the amount of carbohydrates (in grams) for 2x units tomatoes and y units apples.

Find m so that `(2/9)^3 xx (2/9)^6 = (2/9)^(2m - 1)`

Express the following in single exponential form:

2⁴ × 4²

If 2ⁿ⁺² – 2ⁿ⁺¹ + 2ⁿ = c × 2ⁿ, find the value of c.

A googol is the number 1 followed by 100 zeroes.

1. How is a googol written as a power?
2. How is a googol times a googol written as a power?

A triangle can be constructed by taking its sides as ______.

The number of lines of symmetry in the figure given below is ______.

All faces of a pyramid are always ______.

A solid that has only one vertex is ______.

Total number of edges a cylinder has ______.

Which of the following letters of English alphabets have more than 2 lines of symmetry?

In an isosceles right triangle, the number of lines of symmetry is ______.

______ is a figure that has neither a line of symmetry nor a rotational symmetry.

The common portion of two adjacent faces of a cuboid is called ______.

A plane surface of a solid enclosed by edges is called ______.

The corners of solid shapes are called its ______.

Line of symmetry for an angle is its ______.

A parallelogram has ______ line of symmetry.