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Question

If a quadrilateral has three acute angles each measure 75 find the measure of the fourth angle.

A
135 degrees
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B
125 degrees
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C
235 degrees.
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D
115 degrees
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Solution

The correct option is A 135 degrees
Sum of angles of a quadrilateral = 360 degrees.
Sum of the given three angles = 75 + 75 + 75 = 225 degrees
The fourth angle = 360 - 225 = 135 degrees.

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