In the given figure, Z1 = 2x - 10º and Z2 = 3x + 20°, find x and hence 21 and 22.
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Answer:
z1+z2 = 180°
then. 2x-10+3x+20.= 180°
then
5x= 170
X = 170/5 = 34
then angles = z1 = 2x-10 = 68-10 = 58°
z2 = 3x+20 = 122°
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