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The diagonal of a rectangle is 5 cm and one of at side is 4 cm. It's area iss?
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Most Upvoted Answer
The diagonal of a rectangle is 5 cm and one of at side is 4 cm. It's a...
Given Information



  • Diagonal of the rectangle = 5 cm

  • One of the sides of the rectangle = 4 cm



Formulae



  • Let the length of the rectangle be 'l' and the width be 'w'

  • Using Pythagoras theorem, we can say that l² + w² = diagonal²

  • The formula for the area of a rectangle is A = l x w



Solution



  • Let's use Pythagoras theorem to find the length of the rectangle

  • diagonal² = l² + w² (since one of the sides is 4 cm, we can say that w = 4)

  • 5² = l² + 4²

  • 25 = l² + 16

  • l² = 9

  • l = 3 cm

  • Now that we know both the length and width of the rectangle, we can use the formula for area

  • Area = 3 cm x 4 cm = 12 cm²



Final Answer


The area of the rectangle is 12 cm².
Community Answer
The diagonal of a rectangle is 5 cm and one of at side is 4 cm. It's a...
Use pythagoras find other side which is 3
then area=L×B=3×4
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The diagonal of a rectangle is 5 cm and one of at side is 4 cm. It's area iss?
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The diagonal of a rectangle is 5 cm and one of at side is 4 cm. It's area iss? for CA Foundation 2024 is part of CA Foundation preparation. The Question and answers have been prepared according to the CA Foundation exam syllabus. Information about The diagonal of a rectangle is 5 cm and one of at side is 4 cm. It's area iss? covers all topics & solutions for CA Foundation 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The diagonal of a rectangle is 5 cm and one of at side is 4 cm. It's area iss?.
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