Question

what is the measure of angle ECD from this following triangle problem?

score 1.6k · Answer 1 · 2014-03-25 19:13:17

1.6k

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what is the measure of angle ECD from this following triangle problem?

Published on 25 Mar 2014 - 19:13

score 57 · Answer 2 · 2014-03-26 06:35:00

57

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How to prove that:$ BC^2= 3CM^2 + AC^2 $from this triangle problem?

Published on 26 Mar 2014 - 6:35

score 1.7k · Answer 3 · 2014-03-26 07:54:17

1.7k

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What is the converse of the triangle inequality?

Published on 26 Mar 2014 - 7:54

score 275 · Answer 4 · 2014-03-26 16:39:40

275

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In Triangle, $\sin\frac A2\!+\!\sin\frac B2\!+\!\sin\frac C2\!-\!1\!=\!4\sin\frac{\pi -A}4\sin\frac{\pi -B}4\sin\frac{\pi-C}4$

Published on 26 Mar 2014 - 16:39

score 213 · Answer 5 · 2014-03-27 09:54:19

213

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How to prove these equations base on this following interior and exterior angle bisectors problem?

Published on 27 Mar 2014 - 9:54

score 131 · Answer 6 · 2014-03-27 11:18:53

131

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why a^2 + b^2 = c^2 in right-angled triangle

Published on 27 Mar 2014 - 11:18

score 690 · Answer 7 · 2014-03-27 15:20:39

690

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In △ABC, median AM = 17, altitude AD = 15 and the circum-radius R = 10. Find BC^2

Published on 27 Mar 2014 - 15:20

score 449 · Answer 8 · 2014-03-27 16:53:33

449

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A problem related to circle , altitude , triangle.

Published on 27 Mar 2014 - 16:53

score 36 · Answer 9 · 2014-03-27 18:14:18

36

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How to prove that $FC/FA + GC/GA= 0$ from this triangle problem?

Published on 27 Mar 2014 - 18:14

score 854 · Answer 10 · 2026-03-29 21:02:46

854

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A question related to triangles , areas , ratio of areas of triangles.

Published on 29 Mar 2026 - 21:02

score 574 · Answer 11 · 2014-03-30 10:09:36

574

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triangle with given 2 medians and 1 side

Published on 30 Mar 2014 - 10:09

score 240 · Answer 12 · 2026-03-29 20:55:09

240

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Midpoints of a triangle

Published on 29 Mar 2026 - 20:55

score 289 · Answer 13 · 2014-03-31 10:33:26

In $\triangle ABC$, I is the incenter. Area of $\triangle IBC = 28$, area of $\triangle ICA= 30$ and area of $\triangle IAB = 26$. Find $AC^2 − AB^2$

score 1.1k · Answer 14 · 2014-03-31 13:06:18

1.1k

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Given the length of two altitudes and one side , find the area of triangle.

Published on 31 Mar 2014 - 13:06

score 2.4k · Answer 15 · 2026-03-26 06:18:59

2.4k

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triangle construction given side, angle and median

Published on 26 Mar 2026 - 6:18

List Question

what is the measure of angle ECD from this following triangle problem?

How to prove that:$ BC^2= 3CM^2 + AC^2 $from this triangle problem?

What is the converse of the triangle inequality?

In Triangle, $\sin\frac A2\!+\!\sin\frac B2\!+\!\sin\frac C2\!-\!1\!=\!4\sin\frac{\pi -A}4\sin\frac{\pi -B}4\sin\frac{\pi-C}4$

How to prove these equations base on this following interior and exterior angle bisectors problem?

why a^2 + b^2 = c^2 in right-angled triangle

In △ABC, median AM = 17, altitude AD = 15 and the circum-radius R = 10. Find BC^2

A problem related to circle , altitude , triangle.

How to prove that $FC/FA + GC/GA= 0$ from this triangle problem?

A question related to triangles , areas , ratio of areas of triangles.

triangle with given 2 medians and 1 side

Midpoints of a triangle

In $\triangle ABC$, I is the incenter. Area of $\triangle IBC = 28$, area of $\triangle ICA= 30$ and area of $\triangle IAB = 26$. Find $AC^2 − AB^2$

Given the length of two altitudes and one side , find the area of triangle.

triangle construction given side, angle and median

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