Mht CetProperties Of TrianglesMHT CET 2026 19th April Evening ShiftMCQ+2 / -02026In $\triangle ABC$, with usual notations, $(a + b + c)(b + c - a)(c + a - b)(a + b - c) = 3b^2c^2$, then $\angle A = $A$60^\circ$ or $120^\circ$B$30^\circ$ or $150^\circ$C$45^\circ$ or $135^\circ$D$30^\circ$ or $90^\circ$Check AnswerClear SelectionReveal AnswerShow Explanation