## Area of a triangle MYP maths

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### Area of a triangle MYP maths

MYP Mathematics Pre-diploma – Trigonometry, Area of a triangle

How can we find the area of a triangle ABC with sides $a=6 \ cm, b=4 \ cm$

and included angle $\hat{C}=30^{\circ}$ ?

Thanks!
Lucas

Posts: 0
Joined: Mon Jan 28, 2013 8:05 pm

### Re: Area of a triangle MYP maths

MYP Mathematics Pre-diploma – Trigonometry, Area of a triangle

The area of a triangle is a half of the product of two sides and the sine of the included angle.

$A=\frac{1}{2}absinC$

Therefore in your case we have the following

$A=\frac{1}{2}(6)(4)sin30^{\circ} =\frac{3}{4} \frac{1}{2}=\frac{3}{8} \ cm^2$

Hope these help!!
lily

Posts: 0
Joined: Mon Jan 28, 2013 8:04 pm

### Re: Area of a triangle MYP maths

Thank you Lily!
Lucas

Posts: 0
Joined: Mon Jan 28, 2013 8:05 pm