triangle abc is similar of triangle def ,if angle a =45°and angle e=35° then angle b=?
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Correct option is
D
79
∘
ΔABC∼ΔDEF ...Given
⇒∠A=∠D ...C.A.S.T.
⇒∠B=∠E ...C.A.S.T.
⇒∠C=∠F ...C.A.S.T.
∴∠B=∠E=56
o
In ΔABC,
∠A+∠B+∠C=180
o
....Angle sum property of triangles
⇒45
o
+56
o
+∠C=180
o
⇒∠C=79
o
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