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

If a square has a perimeter of 64 cm, what is its area?

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The sum of the reciprocals of two numbers is 1/4. If one number is 12, what is the other?

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What is the value of log₃(27)?

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What is the square root of 0.25?

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If sin(x) = 3/5 and x is in the first quadrant, what is cos(x)?

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What is the sum of all even numbers between 1 and 100?

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If x = 3 and y = 4, what is the value of x^2 + y^2?

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If 2x = 16, what is the value of x?

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What is the HCF of 48 and 180?

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If the probability of an event is 1/4, what is the probability of its complement?

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