Expert: Ahmed Salami - 8/15/2004

Question
 Hello
i am mojtaba. thank you for answering my last question about function. now this is a SylabusD question. i want to know how it is solved.
Suppose a triangle having two angles as 65' and 75', The line between these two angles is 6cm.
if we want to know how much is the height of this triangle, what must we do?
thank you,  

Answer
Hi mojtaba,
Having two angles of a triangle gives you the third one. In this case, it would be 40'. You could go on and find all the remaining sides using the sine rule or just the ones necessary to find the area. If the height you seek is designated h, then the area you have found would be equal to (1/2).6.h = 3h
I've assumed here that you know how to find the area of a triangle.
So i guess you'll go through it quite easily then.
Good luck.
Regards.