PLEASE help on these two questions?!?! (Geometry) I really need to turn my assignment in, it's already late but I have no idea how to do these...

Question

anonymous · Answer

attachment

anonymous · Answer

attachment

anonymous · Answer

I have no idea if the answer for the first one is right and I don't even know how to start the second one..

ganeshie8 · Answer

for the first one, wat ratio did u use ?

ganeshie8 · Answer

sin, cos or tan ?

anonymous · Answer

sin

ganeshie8 · Answer

good :)

$\large \sin 65 = \frac{AB}{AC}$

$\large \sin 65 = \frac{25}{AC}$

$\large AC = \frac{25}{\sin 65}$

anonymous · Answer

I got 27.6, but I don't know how to concert that :o

ganeshie8 · Answer

i also got 27.6 foot

ganeshie8 · Answer

lets convert it to foot and inch

anonymous · Answer

Okay, yeah I meant convert

ganeshie8 · Answer

27.6 foot

27 foot + .6 foot

27 foot + .6 x 12 inch

27 foot + 7.2 inch

27 foot 7.2 inch

ganeshie8 · Answer

so your answer is correct ! does that make sense

anonymous · Answer

oh okay yeah that makes sense. :) What about the second question?

ganeshie8 · Answer

2nd question uses the 1st question dieagram

ganeshie8 · Answer

since the hill is making 28 degrees with the horizontal, 

the angle ABD = 90-28 = 62

ganeshie8 · Answer

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