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3 years ago

Prove that step by step

Mathematics

1 answer:

Elza [17]3 years ago

3 0

Answer:

In ΔECB ,

∠ECD = ∠EBC + ∠BEC (∵ Exterior Angle Property of a triangle)

⇒ ∠BEC = ∠ECD - ∠EBC ................. eqn.1

In ΔABC ,

∠ACD = ∠BAC + ∠ABC (∵ Exterior Angle Property of a triangle )

⇒ 2∠ECD = ∠BAC + 2∠EBC

⇒ ∠BAC = 2∠ECD - 2∠EBC = 2(∠ECD - ∠EBC)

( Putting eqn.1 here )

⇒ ∠BAC = 2∠BEC (∵∠BEC = ∠ECD - ∠EBC)

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Calculate units as 1 and find k

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Answer:

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3 years ago

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Step-by-step explanation:

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For example:

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3 years ago

Their is a rectangle that has measurements in inches. If the width is 7/8 of an inch and the height is 2/3 of an inch, what is t

Alex Ar [27]

Answer:

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Step-by-step explanation

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3 years ago

Prove that step by step ​

Prove that step by step