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If Δ ABC ~ Δ FEG, show that:
(i)
(ii) Δ DCB ~ Δ HGE
(iii) Δ DCA ~ Δ HGF
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: It is given that ΔABC ΔFEG
∠A = ∠F, ∠B = ∠E, and ∠ACB = ∠FGE
∠ACB = ∠FGE
∠ACD = ∠FGH (Angle bisector)
And, ∠DCB = ∠HGE (Angle bisector)
(i) In ΔACD and ΔFGH,
∠A = ∠F (Proved above)
∠ACD = ∠FGH (Proved above)
∴ΔACD~ ΔFGH (By AA similarity criterion)
(Corresponding sides of similar triangles are proportional)
(ii) In triangle DCB and HGE
∠DCB = ∠HGE (Proved above)
∠B = ∠E (Proved above)
Therefore,
ΔDCB~ ΔHGE (By AA similarity criterion)
(iii) In ΔDCA and ΔHGF,
∠ACD = ∠FGH (Proved above)
∠A = ∠F (Proved above)
ΔDCA ~ΔHGF (By AA similarity)
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