Topic Details (Notes format)

How to Convert Between Inches and Centimeters

Subject: Mathematics

Book: Maths Mastery

A vital cross-system conversion, especially in global trade, is between inches (imperial) and centimeters (metric). The approximate formula is 1 inch ≈ 2.54 cm. So, to convert 10 inches, multiply 10 by 2.54 to get 25.4 cm. Conversely, to convert centimeters to inches, divide by 2.54. Proficiency in these conversions is essential for reading height measurements, solving furniture dimension puzzles, or dealing with clothing sizes in international markets. Keeping the 2.54 ratio in mind helps ensure consistent, reliable conversions for everyday needs.

Practice Questions

A man rows downstream at 6 km/h and upstream at 4 km/h. What is the speed of the stream?

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The perimeter of a rectangle is 50 cm, and its length is 15 cm. What is its width?

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If a cylinder has a radius of 7 cm and height of 10 cm, what is its volume?

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A cube has a side length of 4 cm. What is its volume?

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The sides of a triangle are 5 cm, 12 cm, and 13 cm. What type of triangle is it?

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

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If a rectangle has a length of 10 cm and a width of 6 cm, what is its perimeter?

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If the angles of a triangle are in the ratio 2:3:4, what is the measure of the largest angle?

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A sum of money triples itself in 12 years at simple interest. What is the rate of interest per annum?

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

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