Question

if one angle of a triangle is 60 ° and other two angles are in the ratio 1:2 find the angles​

Answer 1

Step-by-step explanation:

A=60,

B:C=1:2

=> B/C=1/2

=> B=1/2×C

A+B+C =180 (angle sum property of triangle )

60 + 1/2×C +C = 180

1/2×C + C = 180 - 60

(C+2C)/2 = 120

3C = 120×2

C = (120×2)/3

C = 40×2

C = 80

B = C/2

B = 40