Math, asked by akshatsingh12, 7 months ago

यदि एक शर्ट का साइज 27 सेंटीमीटर है और पेंट का साइज 28 सेंटीमीटर है तो कोर्ट का कितना साइज होगा​

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Answered by ashwinrawat39
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Step-by-step explanation:

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bikashkmr1995

bikashkmr1995

26.04.2019

Math

Secondary School

+50 pts

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यदि एक आयत का परिमाप 34 सेंटीमीटर है और विकर्ण 13 सेंटीमीटर है तो उसका क्षेत्रफल कितना होगा

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Answer:

_________________________

Perimeter of rectangle = 2(L+ B) = 34 cm

=> L + B = 17 cm ……. (1)

Since diagonal = 13 cm

By pythagoras law

13² = L² + B²

=> 169 = (L + B)² - 2LB

=> 169 = 17² - 2LB

=> 2LB = 289 - 169 = 120

=> LB = 60

Area = 60 cm²

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