`DeltaABC` में, यदि `2angleA=3angleB=6angleC` हे, `angleB` का मान हे।

Options

A. `60^(@)`
B. `30^(@)`
C. `45^(@)`
D. `90^(@)`

Answer

A

Explanation

According to question, Given,
`2angleA= 3angleB`
`(angleA)/(angleB)= 3/2` `(3angleB)=(6angleC)`
`(angleB)/(angleC)= 6/3 = 2/1`
To make anlge `angleB` same
`therefore angleA : angleB: angleC`
`3 : 2: 1`
As we know that
`angleA+angleB+angleC= 180^(@)`
`x=30^(@)`
`angleB =2x=60^(@)`