existing in or caused by nature; not made or caused by humankind

relating to or having three surfaces or sides

त्रिभुजात्मक

English Usage: The trihedral angle formed by the two planes is crucial for the design.

Hindi Usage: दो समतलों द्वारा बनाए गए त्रिभुजात्मक कोण डिज़ाइन के लिए महत्वपूर्ण है।