A four-sided shape has angles with ratio 1:2:3:4. What is the measurement of one of its angles? Choose the correct choice from the following options
A) 32Â°  B) 70Â°  C) 112Â°  D) 144Â°  E) 168Â°
The angles of a four-sided shape should add up to 360Â°. Using the 1:2:3:4 ratio, we use the equation   x + 2x + 3x + 4x = 360Â°   10x = 360Â°   x = 36Â°   x = 36Â°   2x = 72Â°   3x = 108Â°   4x = 144Â°, which is 144Â°, so this is the correct answer.
<result>D</result>
A four-sided shape has angles with ratio 1:2:3:4. What is the measurement of one of its angles?