Math, asked by siddhantwani9, 3 months ago

observe above figure .in triangle abc,if angle c=45 than find bc

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Answers

Answered by Anonymous

0

Answer:

BC=10

Step-by-step explanation:

In ΔADC

cos45=DC/AC=1/√2

DC/(7/√2)=1/√2

DC=(7/√2 )/ (1/√2)=7

DC=7

THus BC=BD+DC=3+7=10

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