Topic Details (Notes format)

How to Calculate the Area of a Rectangle

Subject: Mathematics

Book: Maths Mastery

Rectangles form the basis of countless geometric and real-life applications, from plotting out rooms to determining the surface area of rectangular objects. The area formula is A = length × width. For example, a 12 m by 8 m rectangle has an area of 96 m². This simple calculation underlies more complex designs, such as floor plans or packaging materials. Grasping rectangular area helps you swiftly compute how much paint to buy for a wall or how large a garden bed is, making it indispensable in practical problem-solving.

Practice Questions

What is the probability of drawing a king from a standard deck of 52 playing cards?

View Question

A car covers a distance of 150 km in 2.5 hours. What is its average speed?

View Question

The LCM of 12 and 15 is:

View Question

What is the sum of the first 20 odd numbers?

View Question

If a+b = 10 and ab = 21, what is the value of a^3 + b^3?

View Question

What is the square root of 0.25?

View Question

A number is increased by 20% and then decreased by 20%. What is the net change?

View Question

What is the square root of 121?

View Question

The perimeter of a rectangle is 40 cm, and its length is 12 cm. What is its width?

View Question

If x^2 + 4x + 4 = 0, what is the value of x?

View Question