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...39;s find angle BCA and angle ACE: angle ACE: Arc AEC = 180 Arc CE + Arc AE = 180 50 + Arc AE...

1 Answers · Science & Mathematics · 18/05/2019

2. ### 辰　∠A = ____°.?

... either given or easily deduced. ED bisects ∠AEC hence AD/DC = EA/EC = sin(6x)/sin(14x) BD ...

1 Answers · Science & Mathematics · 25/12/2017

3. ### What is the measure of ∠ECA?

Chord AC subtends a minor chord of 360°-200° = 160°. Angle AEC = 160° Angle ECA = (180°-160°)/2 = 10°

3 Answers · Science & Mathematics · 29/04/2017

4. ### Please explain how to solve the question.?

Angle AEC = Angle DEB = 4x degrees Angle Formed by...

2 Answers · Science & Mathematics · 15/05/2017

5. ### HELP! I don t understand how to prove this math problem.?

... . By the sine law , CE / sin(∠CAE) = AC / sin(∠AEC) CE / sin(90° - θ) = 1 / sin(∠AEC) CEsin(∠AEC) = sin...

1 Answers · Science & Mathematics · 04/04/2017

6. ### Math question?

...if aEb then bEa. 3) transitivity: if aEb and bEc, then aEc. (ii) Claim: S is an equivalence relation on X. Proof...

2 Answers · Science & Mathematics · 22/03/2017

7. ### AE = ... .............?

... △ACD is an isosceles with AC = AD , so ∠AEC = ∠AED = 90° . It means tan(2θ) = BE / AE = 3...

1 Answers · Science & Mathematics · 22/04/2016

8. ### In the figure below , AB || CD , AE bisects /_BAC , and CE bisects ACD . If the measure of /_BAC is 82 degrees , what is the measure of AEC?

Since you did not provide the figure, I made a sketch from which the following: Because AB || CD, ACD = 180 - 82 = 98 CAE = 41; ACE = 49, so AEC = 90, answer C.

2 Answers · Science & Mathematics · 25/03/2016

9. ### triangles ABC is inscribed in a circle and AB=AC the bisector of angle ABC meets the tangent from A at D. Prove that AD and BC are parallel?

...tangent ∠EAD must be a right angle. We have already proved that ∠AEC is a right angle As these internal angles of BC and ...

3 Answers · Science & Mathematics · 01/03/2016

10. ### How to construct a geometric proof?

... and CD intersect at E See figure Prove angle AEC = angle DEB you look at it, and you say AEC has some measure...

2 Answers · Science & Mathematics · 19/01/2016