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Subtract the (sum of the other three angles) from 360.

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Q: How do you find the measure of a fourth angle on a quadrilateral?
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How do you find the measure of an interior angle in a quadrilateral inscibed in a circle?

There is no specific limitation on any one angle of an inscribed quadrilateral.


The measures of the three angles of a quadrilateral are 80 140 55 find the measure of the fourth angle?

the angle measures of a quadrilateral must equal 360 degrees so you add 80+140+55=275 then subtract from 360. the answer is 85


How do you find an measure of an angle in a rectangle?

A rectangle is a quadrilateral (four sided shape) with four right angles. Therefore, the measure of every angle is 90 deg.


What is the measure of the forth angle of a quadrilateral if one angle measures 106 degrees and the other measures 47degrees and the third one measures 133?

The sum of the interior angles of a quadrilateral must equal 360 degrees. If you know three of the angles, just subtract them from 360 to find the fourth angle. In this case: 360 - 106 - 47 - 133 = 74


How do you find the measures of a central angle?

If three central angles measures 65, 87, and 112, find the measure of the fourth central angle.


How do you find the missing angle measure in the quadrilateral 85 90 60?

The 4 interior angles of a quadrilateral add up to 360 degrees. 360-65-90-60 = 145 degrees which is the missing angle


How do you find the measure of angle?

The sum of the angles of a triangle equal 180 degrees. The sum of the angles of a quadrilateral equal 360 degrees. To find the measure of an angle for a triangle, you must first be given the other two angle numbers, unless it is an equilateral triangle, in which all angles would equal 60 degrees. To find the measure of a quadrilateral, you must first be given the other three angle numbers, unless it is a square, in which all angles would equal 90 degrees.


How do you find the size of the angle in a quadrilateral?

Use a protractor.


How do you find the last angle of a quadrilateral?

Subtract the 3 known angles from 360 to find the 4th angle.


Is as large as the first angle and the second angle combined Find the angle measures in the quadrilateral?

A quadrilateral has four angles. There is information on only three so there are infinitely many possible answers.


How do you find the measure of an inscribed angle?

You find the arc measure and then you divide it in half to find the inscribed angle


Three angles of a quadrilateral are 58 percent 103 percent 115 percent find the fourth angle?

Presumably you mean degrees? Angles in a q/lateral total 360... over to you!