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1 answer:
Answer:
∠x = 80°
∠y = 140°
∠z = 20°
Step-by-step explanation:
- the sum of the interior angles of a triangle is 180°
- the measure of third angle = the sum of the interior angles - the sum of two angles
x = 180 - (60 + 40) = 80
∠x = 80°
- the measure of 40 and ∠y are on the straight line and they are both equal 180°
then to find the value of y = 180 - 40
y = 180 - 40 = 140
∠y = 140°
z = 180 - (140 + 20) = 20
∠z = 20°
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