Angle ABD and angle BDC are a linear pair. measurement of angle ABD=3x+14 & m angle BDC=5x.What are the measurements of angle ABD and angle BDC? 1.what do you know? 2.)what do you need? 3.what is your plan? 4.)What is your solution? PLEASE HELP!
3x + 14 + 5x = 180 (degrees) Linear pair means that both angles will equal a line (180 degrees)
8x + 14 = 180
8x + 14 - 14 = 180 - 14 (subtract 14 from both sides)
8x = 166
x = 20.75 degrees
Angle BDC = 5x = 5 (20.75) = 103.75 degrees
Angle ABD - 180 - 103.75 = 76.25 degrees
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