Question

The three angles of a quadrilateral are 90°, 115° and 85°. The fourth angle is
65°
85°
75°
70°

Answer 1

Answer:

70

Step-by-step explanation:

angle sum property of quadrilateral = 360degrees

so, 90+115+85+x=360

290+x=360

x=360-290

x=70

therefore forth angle of quadrilateral=70 degrees

Answer 2

Answer:

it's your answers..

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