Show that if the diagonals of a quadrilateral cut each other in a right angle, then the sum of the squares of opposite sides are equal. please solve fastly because today is my test​

  • matematika

    Subject:

    Math

  • Author:

    hall

  • Created:

    1 year ago

Answers 1

Step-by-step explanation:

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please give me correct answer and step by step solution ​
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Answer:

ap × pc = dp × pb

Step-by-step explanation:

In ∆apb and ∆dpb [< is angle]

<a = <d (given)

<apb = <dpb (vertically opposite angles)

so, by aaa similarity ∆apb ~ ∆dpb [ ~ is similar]

hence , ap/pb = dp/pc (by s.p.s.t)

now cross multiplying this equation

ap × pc = dp × pc

Hence proved.

please mark me brainliest.

A car covers 1km in 0.45L petrol.How much petrol will be used to cover 12.5km?​
As 1km is cover in 0.45L1km=0.45L12.5km will be covered in:12.5*0.45/1=12.5*0.455.625L
8/35×[-7/51]×17/35please clear me the doubt ​
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when did Keats lost his parents​

In April 1804, when Keats was eight, his father died from a skull fracture after falling from his horse while returning from a visit to Keats and his brother George at school.

Answer:

keats

Explanation:

April 1804, when Keats was eight, his father died from a skull fracture after falling from his horse while returning from a visit to Keats and his brother George at school. Thomas Keats died intestate.

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