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

A ______ triangle has no lines of symmetry.

An angle has two lines of symmetry.

A regular hexagon has six lines of symmetry.

An isosceles trapezium has one line of symmetry.

A parallelogram has two lines of symmetry.

An equilateral triangle has six lines of symmetry.

A cylinder has no vertex.

A triangular prism has 5 faces, 9 edges and 6 vertices.

The number of lines of symmetry of a regular polygon is equal to the vertices of the polygon.

Draw an isosceles triangle with each of equal sides of length 3 cm and the angle between them as 45°.

By what minimum angle does a regular hexagon rotate so as to coincide with its original position for the first time?

How many faces does figure have?

Given the line of symmetry, find the other hole:

Using laws of exponents, simplify and write the answer in exponential form:

6¹⁵ ÷ 6¹⁰

Using laws of exponents, simplify and write the answer in exponential form:

`(5^2)^3 ÷ 5^3`

Using laws of exponents, simplify and write the answer in exponential form:

`(2^20 ÷ 2^15) xx 2^3`

Using laws of exponents, simplify and write the answer in exponential form:

8^t ÷ 8²

Simplify and express the following in exponential form:

((5²)³ × 5⁴) ÷ 5⁷

Simplify and express the following in exponential form:

25⁴ ÷ 5³

Simplify and express the following in exponential form:

`3^7/(3^4 xx 3^3)`