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#1 Help Me ! » Problem, please help? » 2008-05-14 06:16:31

parseconds
Replies: 4

It is always true that if

then


Give an example showing that

need not be true for all x.

#2 Help Me ! » Isosceles Triangle » 2008-05-14 06:13:54

parseconds
Replies: 2

One angle of an isosceles triangle is 150 degrees.  If the area of the triangle is 9 square feet, what is the perimeter of the triangle?

#4 Help Me ! » Quadrilateral » 2008-05-13 19:02:49

parseconds
Replies: 1

Consider the quadrilateral ABCD pictured below.  The three sides AD, DC, and CB have lengths 50, 60, 70 respectively.  Angle <C measures 132

and <ADC measures 127
.

quadrilateral.jpg


a) Find the length of DB and the measure of angles <BDC and <ADB.


b) Find the area of the quadrilateral (recall

)


c) Find the length of side AB and the measure of angle <BAD

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