Question

The following steps are involvedd in finding the angles of the triangles ABC, when `angleA: angleB: angleC=1:2:3`. Arrange them in sequential order.
(A) Let the angle be `angleA=x, angleB=2x and angleC=3x`.
(B) Given `angleA: angleB: angleC=1:2:3`
(C ) `angleA=30^(@),angleB=2(30^(@))=60^(@) and angleC=3(30^(@))=90^(@)`.
(D) `angleA+angleB+angleC=180^(@)implies x+2x+3x=180^(@)`
(E ) `6x=180^(@)impliesx=30^(@)`
A. BADCE
B. DBAEC
C. BADEC
D. BACDE

Answer 1

Correct Answer - C
(B),(A),(D),(E ) and (C ) is the required sequential order.
Hence, the correct option is (c ).