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Old 08-02-2007   #1
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Default geometry angle?

if the measure of angle ABC=85, the measure of angle ABD =x+30, and the measureof angle CBD=2x+10,what is the measure of angle ABD? and angle CBD?
Old 08-02-2007   #2
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Draw out the picture of the two angles. Note that they are adjacent (sharing ray AB)2x + 10 = x + 30 + 85x + 10 = 115x = 105Angle ABD = 105 + 30 = 135Angle CBD = 135 + 85 = 220

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