Question

In triangle ABC, A:B:C = 2:3:5, then angle at B is​

Answer 1

Answer:

angle B =54°

Step-by-step explanation:

let assume

2x+3x+5x=180. sum of all angles of triangle

10x=180

X=180/10

X=18

angle B = 3x =3×18=54

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Answer 2

Answer:

∠B = 54°

Step-by-step explanation:

∠A + ∠B+ ∠C = 180° (∵ Angle Sum Property)

2x + 3x + 5x = 180°

               10x = 180°

                   x = 180/10

                   x = 18°

To find the value of ∠B

∠B = 3x

    = 3 * 18

∠B= 54°