Math, asked by heroine48, 4 months ago

please answer my question correctly please please please please please please

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Answered by dkchakrabarty01

0

Answer:

Let the w

quad be ABCD. Draw diagonal BD

Consider ∆ABD

angle A + angle ABD + angle ADB = 180..... (1)

Consider ∆ BDC

angle C + angle CBD + angle CDB = 180....(2)

Add (1) + (2)

angle A + angle C + (angle ABD + angle CBD) + (, angle ADB+ angle CDB) = 180 + 180

angle A + angle C + angle B + angle D = 360=4 right angle

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