△ABC में, D पर BD ⟂ AC है और ∠DBC = 22° है। BC पर E एक बिंदु है जिससे ∠CAE = 36° है। ∠AEB का माप क्या है?

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RRB NTPC Graduate Level CBT-I Official Paper (Held On: 06 Jun, 2025 Shift 3)
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  1. 104°
  2. 103°
  3. 102°
  4. 101°

Answer (Detailed Solution Below)

Option 1 : 104°
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RRB NTPC Graduate Level Full Test - 01
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दिया गया है:

Δ ABC में, D पर BD ⊥ AC है और ∠DBC = 22º है। BC पर E एक बिंदु है जिससे ∠CAE = 36º है।

प्रयुक्त सूत्र:

Δ में कोणों का योग = 180º

गणना:

Δ BDC में, चूँकि BD ⊥ AC:

∠BDC = 90º

हमारे पास है, ∠DBC = 22º

तब, ∠BDC + ∠DCB + ∠DBC = 180º

⇒ 90º + ∠DCB + 22º = 180º

⇒ ∠DCB = 180º - 112º

⇒ ∠DCB = 68º

Δ AEC में, ∠CAE = 36º

तब, ∠AEB = ∠CAE + ∠DCB

⇒ ∠AEB = 36º + 68º

⇒ ∠AEB = 104º

सही विकल्प 104° है।

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