Question

if the three angles of a quadrilateral are each equal to 75 the fourth angle is​

Answer 1

Answer:

Step-by-step explanation:

ANGLE A +ANGLE B+ ANGLE C + ANGLE D=360

75+75+75+ANGLE D=360

225+ANGLE D=360

ANGLE D=360-225

ANGLE  D=135

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Answer 2

the sum angle property of a quadrilateral =360°

let the fourth angle be x

75°+75°+75°+x=360°

x=360°-225°

x=135°

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