# Math Help - sine problem

1. ## sine problem

Hi;
I am familiar with the sine law(rule) but i've been to a few websites that seem to have the wrong answers.

A question states find the size of BC given that AB=14cm angle BAC=26 and angle ACB=13.

They have BC=27.3cm

I have BC=25.4cm

I'm just making sure I'm right.

Thanks.

2. ## Re: sine problem

That's why you need to include the UNITS when you write down a problem. If 13 means 13º, the BC = 27.3 cm. If 13 means 13 radians, then BC = 25.4 cm.

Check your problem statement and your calculator setting.

3. ## Re: sine problem

Ok thanks it was my calculator settings(need to remember to check that).