Question

please answer the question of the maths I will give you 20 points​

Answer 1

Answer:

Solution

It is given that three angles are equal and measure of fourth angle is 120

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Let the measure of each of the equal angles be x

We know that, sum of four measure of angles of quadrilateral is 360

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⇒ x+x+x+120

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=360

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⇒ 3x+120

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=360

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⇒ 3x=240

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⇒ x=80

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Hence, this is the answer