In , . If and , find the value of…

MATHEMATICS · Single correct · CBSE · Mathematics · Triangles · Triangles

Problem

In △DEF\triangle DEF, DE=DFDE = DF. If ∠E=(3x+10)∘\angle E = (3x + 10)^\circ and ∠F=(5x−26)∘\angle F = (5x - 26)^\circ, find the value of xx. (a) 2020 (b) 1717 (c) 1818 (d) 1212

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