Mathematics · Geometry
समकोण त्रिभुज DEC में, DE = 18 सेमी, CE = 5 सेमी, और ∠DEC = 90° है। यह त्रिभुज ABC के समरूप है, जहाँ ∠ABC, ∠EDC के संगत है। यदि tan(∠ABC) = 3.6 है, तो कोणों के संबंध में निम्नलिखित में से कौन सा सही है?
- 1∠A = 4∠C
- 2∠A = 2∠D
- 3∠A = 3∠B
- 4∠A = 2∠E✓
सही उत्तर देखें
∠A = 2∠E
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