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3 years ago

Find X for brainiest

Mathematics

2 answers:

never [62]3 years ago

6 0

Answer:

136°

Step-by-step explanation:

In quadrilateral ABCD,

$m\angle A = 180\degree - 107\degree = 73\degree$ (Angles in linear pair)

$m\angle B = 61\degree$ (Vertical Angles)

$m\angle C= 90\degree$ (Given)

$m\angle A +m\angle B+m\angle C+m\angle D= 360\degree$ (Interior angle sum postulate of a quadrilateral)

$73\degree +61\degree+90\degree+x= 360\degree$

$224\degree+x= 360\degree$

$x= 360\degree-224\degree$

$x= 136\degree$

BaLLatris [955]3 years ago

4 0

Answer:

136°

Step-by-step explanation:

Look at the attached paper for the steps.

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