If the length of a rectangle is 8 cm and its diagonal is 10 cm, find its area.

dsuc.created: 7 years ago | dsuc.updated: 1 week ago

dsuc.updated: 1 week ago

64 cm2

40 cm2

48 cm2

80 cm2

85 cm2

Social Islami Bank Ltd Social Islami Bank Ltd - Trainee Officer - 31.12.2010 গণিত চতুর্ভুজ (Quadrilateral)

dsuc.explanation

562

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Using short cut technique

ABC is a right angled triangle

সমকোণী ত্রিভুজের তিন বাহুর অনুপাত হতে পারে

3 : 4 : 5 or 5 : 12 : 13

3 : 4 : 5 = 6 : 8 : 10

Area = 6 × 8 = 48 cm²

7 years ago

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Md Azizur Rahman

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গণিত

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