Find x and y in a trapezium ABCD if A= y degrees D= 120 degrees C= x degrees B(exterior angle)= 100 degrees
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Step-by-step explanation:
first find angle B (interior one)
angle B (interior) + angle B (exterior) = 180 (linear pair)
angle B = 180-100
B = 80
now
sum of opposite angle of a trapezium are equal
so
angle A = angle D = 120
y = angle D = 120
angle C = angle B = 80
x = angle B = 80
hope u undetstood
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