ABCD is an isosceles trapezium and ABEF is a kite.angle FAB is equal to 43° and Angle AFE=137°.find X and Y .
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<FAB + <AFE = 43 + 137 = 180.
Here,
<EBP = <FEB = x
<PBC = <BCD = y
NOW,
<EBC = 115 such that x + y = 115 ----- (1)
now,
As,
ΔFAE ≅ ΔBAE
= (1/2) <FAB
= (1/2) * 43
= 21.5
now,
∠FEA = 180 - (137 + 21.5)
= 21.5
now,
<FEB = 2(21.5) = 43
Therefore, x = 43.
from (1)
y = 115 - 43 = 72
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