Add Math

[Aathi]

Can anybody help me in Add maths 2009 Oct ppr 2,Q11 (a)

 

[Aathi]

Srry Q11 (i)

 

[PlanetMaster]

Part (i) of what?
The 'EITHER' one or the 'OR' one?

 

[Jezla]

Either

 

[PlanetMaster]

Strech a line from P to Q.
Now use Sin rule to calculate APQ:
Sin(APQ) = Sin(AQP)
....3.............√3
Make sure your calculator is in Rad mode then:
APQ = sin ̄ ¹ [(√3)/2]
APQ = π/3
APB = 2APQ
APB = 2(π/3)
APB = 2π/3

 

[Aathi]

Thanx