Sagot :
The sum of the interior angles of a quadrilateral is equal to 360°.
Solution:
Let: x = measurement of the angle
4x + 6x + 7x + 3x = 360
20x = 360
20x/20 = 360/20
x = 18
For the smallest angle:
3x = 3(18) = 54°
For the largest angle:
7x = 7(18) = 126°
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