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1. ### E is a point on side AD of a rectangle ABCD so that DE=6, DA=8 and DC=6.?

...sqrt (6^2 + 8^2) = 10. Now triangle FED is similar to triangle AEC so that sqrt 2 / 2 = FD / 10. Then FD = 5 sqrt 2. FB...

1 Answers · Science & Mathematics · 09/12/2012

2. ### Suppose we define E on A by aEb iff aRb and bRa. Show that E is an equivalence relation on A?

...: Need to show that aEb and bEc => aEc. Let aEb and bEc. Then aRb and bRa...

1 Answers · Science & Mathematics · 19/03/2014

3. ### In the diagram below of ΔABC, is the bisector of ∠BCA, AE is the bisector of ∠CAB, BG is drawn.?

D) because angle bisectors meet at a point. BG is the the bisector of ABC and therefore DBE

1 Answers · Science & Mathematics · 23/11/2012

4. ### GEOMETRY math problem; help please!?

...isosceles triangle are equal!.......st. 2 <AEB=<AEC... both being rt. angles!.....st. 3 so we can write <...

1 Answers · Science & Mathematics · 18/11/2012

5. ### Geometry qn with diagram?

...18.435° <BAE = tan^-1 8/16= 26.565° so, <AEC = 90° + 26.565° = 116.565° <CFE = 180° - 18.435° - 116.565...

1 Answers · Science & Mathematics · 02/02/2013

6. ### In the diagram above, ABCD is a square. AEC is an arc of a circle centered at D...?

the diagram is mislabeled somehow * the radii of the circles are the same as the sides of the square, which makes ΔAED an equilateral triangle

2 Answers · Science & Mathematics · 12/10/2012

7. ### Maths Circle question?

...at C , curve intersects at E , F In triangle AEC , use cosine rule to find the size of angles A , C ---> easy to...

1 Answers · Science & Mathematics · 27/09/2012

8. ### how do you solve this triangle equation [GEOMETRY]?

...triangle ABC is compose of 3 triangles: ABD,ADE,AEC. <1=2x <3=x Find the measure of angle ...

1 Answers · Science & Mathematics · 27/08/2012

9. ### Find the area of quadrilateral?

...bisector of AD. Since AD = 6, then AE = ED = 3 AEC is also a right angle as EC must be perpendicular to AD. ...

4 Answers · Science & Mathematics · 22/08/2012

10. ### GEOMETRY HELP!!! (GEOMETRY OF THREE DIMENSIONS)?

ok so Triangle AEC is congruent to Triangle BED? each segment.... as in.... AE...

1 Answers · Science & Mathematics · 08/05/2012