+0  
 
+1
509
5
avatar+1442 

1:  An equilateral triangle has a side of length 12 inches. What is the area of the triangle, in square inches? Express your answer in simplest radical form.

 

2:  In triangle ABC, AB = AC = 5 and BC = 6. Let O be the circumcenter of triangle ABC. Find the area of triangle OBC.

3:  The medians AD, BE, and CF of triangle ABC intersect at the centroid G. The line through G that is parallel to BC intersects AB and AC at M and N, respectively. If the area of triangle ABC is 810, then find the area of triangle AMN.

 

(#3 isn't 8)

 

Thanks everyone!

AnonymousConfusedGuy  Mar 15, 2018
 #1
avatar+9644 
+2

1:  An equilateral triangle has a side of length 12 inches. What is the area of the triangle, in square inches? Express your answer in simplest radical form.

 

2:  In triangle ABC, AB = AC = 5 and BC = 6. Let O be the circumcenter of triangle ABC. Find the area of triangle OBC.

 

3:  The medians AD, BE, and CF of triangle ABC intersect at the centroid G. The line through G that is parallel to BC intersects AB and AC at M and N, respectively. If the area of triangle ABC is 810, then find the area of triangle AMN.

 

laugh

Omi67  Mar 16, 2018
 #2
avatar+89806 
0

Great answers, Omi....!!!!

 

 

cool cool cool

CPhill  Mar 16, 2018
 #3
avatar+1442 
+1

Thanks so much Omi67!  Just wanted to check on #2 though, the area of OBC is 2,625?  Or are you using the French (I think it's French) system where , is a decimal point?

AnonymousConfusedGuy  Mar 16, 2018
edited by AnonymousConfusedGuy  Mar 16, 2018
 #4
avatar
0

She is German, and in Germany they use "," instead of "." for decimal point that we use in the English-speaking countries. So, in Germany, and some other countries, 2,625 means 2.625 in other countries.

Guest Mar 16, 2018
 #5
avatar+1442 
+1

Ah thank you, forgive my ignorance!

AnonymousConfusedGuy  Mar 16, 2018

37 Online Users

avatar
avatar
avatar
avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.