Narayana e-Techno School Maths Teacher Interview Questions and Answers

Lines and angles are fundamental concepts in geometry that help us understand the relationships between straight lines and the angles they form.

• Lines are straight figures that extend infinitely in both directions.

• Angles are formed when two lines intersect at a point.

• Types of angles include acute, obtuse, right, and straight angles.

• Parallel lines have equal corresponding angles, while perpendicular lines form right angl...read more

Ratio is a comparison of two quantities, while proportion is an equation stating two ratios are equal.

• Ratio is a comparison of two quantities using division.

• Proportion is an equation stating that two ratios are equal.

• Example of ratio: If there are 3 red balls and 5 blue balls, the ratio of red to blue balls is 3:5.

• Example of proportion: 2/3 = 4/6, showing that the two ratios are equal.

Symmetry is a concept in mathematics where an object or shape is the same on both sides of a dividing line or axis.

• Symmetry is when one shape becomes exactly like another if you flip, slide or turn it.

• There are different types of symmetry such as reflectional symmetry, rotational symmetry, and translational symmetry.

• Examples of symmetry include a circle, square, and equilateral triangle.

• Symmetry can be found in nature,

Simple interest is a type of interest calculated only on the initial principal amount.

• Simple interest is calculated as: I = P * r * t, where I is the interest, P is the principal amount, r is the interest rate, and t is the time period.

• It is different from compound interest, which includes interest on both the principal amount and any accumulated interest.

• Simple interest is commonly used in loans, mortgages, and saving...read more

Compound interest is interest calculated on the initial principal and also on the accumulated interest from previous periods.

• Compound interest is calculated based on the initial principal amount and the accumulated interest from previous periods.

• The formula for compound interest is A = P(1 + r/n)^(nt), where A is the amount, P is the principal, r is the annual interest rate, n is the number of times interest is compoun...read more