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by Polyhymnio
Sun Aug 09, 2009 11:42 pm
Forum: Trigonometry
Topic: Exponets (2)^3 / (2)^-2 ---- ---- (5) (5)
Replies: 2
Views: 1761

Re: Exponets (2)^3 / (2)^-2 ---- ---- (5) (5)

I thing\k it is pretty clear that the expression is
by Polyhymnio
Sun Jul 05, 2009 6:20 am
Forum: Geometry
Topic: Chords in circle: If mAD = 58, m<AED = 42, find BC
Replies: 4
Views: 3724

Re: Chords in circle: If mAD = 58, m<AED = 42, find BC

42 is the mean (average) of the intercepted arcs. (mAD + mBC)/2 = 42. Since we know that mAD = 58, (58 + mBC)/2 = 42, (58 + mBC) = 84, mBC = 26

Polyhymnio
by Polyhymnio
Mon Jun 22, 2009 4:27 am
Forum: Geometry
Topic: Chords in circle: If mAD = 58, m<AED = 42, find BC
Replies: 4
Views: 3724

Re: Chords in circle: If mAD = 58, m<AED = 42, find BC

The measure of the angle between intersecting chords is equal to the mean of the measures of their intercepted arcs. Since <AED and <BEC are vertical angles, (mAD + mBC)/2 = 42. Then mBC = (42)(2) - 58 = 26

Polyhymnio

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