Question

Three angles of a quadrilateral are equal and the fourth angle is 120°. Find the three equal angles.​

Answer 1

Answer:

80° each

Step-by-step explanation:

hope it helps you

Answer 2

Answer:

3 Equal angles are 80° each.

Step-by-step explanation:

angle sum of a quadrilateral = 360°

let the unknown angle be x

then 3x + 120 = 360

3x = 360-120

3x = 240

x = 240/3

x = 80°

hence all 3 angles are 80° and 4th angles is 120°

you can also verify it by putting 80 into the eq.

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