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.
A sum triples in 20 years at simple interest. What is the rate of interest per annum?
View QuestionWhat is the value of x if 3x + 7 = 16?
View QuestionThe sum of the reciprocals of two numbers is 1/4. If one number is 12, what is the other?
View QuestionA number is increased by 20% and then decreased by 10%. What is the net change?
View QuestionA sphere has a radius of 7 cm. What is its volume?
View QuestionIf the sum of three consecutive integers is 72, what are the integers?
View QuestionIf the radius of a circle is 7 cm, what is its circumference?
View QuestionA man invests Rs. 5000 at 5% per annum simple interest. What is the total amount after 3 years?
View QuestionThe LCM of 12 and 15 is:
View QuestionIf x^2 - 6x + 9 = 0, what is the value of x?
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