Question

Please help fast!! I will give medal. Find the area of the triangle having the indicated sides and angle with B=72 degrees 30', a=105 and c=64?

Answer 1

\(Area=\frac{1}{2}105\times 64\times \sin(72.30')\)

Answer 2

are you really working with minutes ? then you need to convert 30 minutes to .5 and compute
\[\frac{1}{2}\times 105\times 64\times \sin(72.5)\]

Answer 3

Is it 3200.94???

Answer 4

http://www.wolframalpha.com/input/?i=105*32*sin%2872.5%29

Answer 5

i think i got it...is it 3204.49

Answer 6

don't use 72.3 use 72.5 because calculator works with decimals, not minutes and seconds (old school)

Answer 7

thank you so much, :)

Answer 8

yw