Can someone please help me?!
Calculate the mangle AED and mangle AEC, given marc AD = 74°, marc BC = 112°, marc AC= 105°, and marc DB = 69°.

Question

Can someone please help me?!
Calculate the mangle AED and mangle AEC, given marc AD = 74°, marc BC = 112°, marc AC= 105°, and marc DB = 69°.

anonymous · Answer

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anonymous · Answer

mangle AED = 93° and mangle AEC = 87° 
 B. mangle AED = 174° and mangle AEC = 186° 
 C. mangle AED = 87° and mangle AEC = 93° 
 D. mangle AED = 186° and mangle AEC = 174°

anonymous · Answer

Never mind, I wasn't looking at it right. :O

anonymous · Answer

Its alright :)

directrix · Answer

@aayyadi    What about this?

anonymous · Answer

I haven't gotten this one yet :(

directrix · Answer

I can help if you will stay on the thread long enough for me to do that. :)

anonymous · Answer

OKay thanks!

directrix · Answer

The angles you are computing are angles formed by two chords intersecting inside a circle. There's a theorem for that.

anonymous · Answer

OKay :)

directrix · Answer

There's ^^^ the formula.

So, m<AED = 1/2  (74 + 112)  --> @aayyadi   Crank out this (1/2) * (74 + 112) = ?

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