bjlvyvggdnnooe555 bjlvyvggdnnooe555

02-04-2021
Mathematics

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math question pls help me

math question pls help me class=

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zidaneboussofi2005 zidaneboussofi2005

02-04-2021

Answer:

A. 45°

Step-by-step explanation:

The sum of all the angles in a quadrilateral must be 360. This means that you need to subtract 135, 90, and 90 from 360 to get the unknown angle.

360 - 90 - 90 - 135 = 45°

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