Question

a quadrilateral angles has three acute angles each measuring 80°.measure of fourth angle is ​

Answer 1

Answer:

120

Step-by-step explanation:

let the angle be X

80+80+80+X=3600 (sum of all angles of quad.)

240+X=360

X=360-240

X=120 ans.

Answer 2

Answer:

120°.

Step-by-step explanation:

Let A be the fourth angle. ATQ,

80° * 3 + A = 360° (ASP of a Quadrilateral)

240° + A = 360°

A = 120°.

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