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newuseeer
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newuseeer
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15
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4
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5 Questions
1 Answers
0
189
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+15
help
We have a triangle $\triangle ABC$ and a point $K$ on $BC$ such that $AK$ is an altitude to $\triangle ABC$. If $AC = 9,$ $BK = \sqrt{5}$, and $CK = 4,$ then what is $AB$?
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newuseeer
Aug 16, 2018
0
380
1
+15
We have a triangle $\triangle ABC$ where $AC = 17,$ $BC = 15,$ and $AB = 8.$ Let $M$ be the midpoint of $AB.$ What is the length of $CM$?
We have a triangle $\triangle ABC$ where $AC = 17,$ $BC = 15,$ and $AB = 8.$ Let $M$ be the midpoint of $AB.$ What is the length of $CM$?
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newuseeer
Aug 16, 2018
0
431
1
+15
help please i need help
Let $G$ be the centroid of $\triangle ABC$; that is, the point where the segments joining each vertex to the midpoint of the opposite side all meet. If $\triangle ABC$ is equilateral with $AB=2$, then compute the perimeter of $\triangle ABC$.
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newuseeer
Aug 16, 2018
0
233
1
+15
help please
We have triangle ABC$ where $AB = AC$ and $AD$ is an altitude. Meanwhile, $E$ is a point on $AC$ such that $AB \parallel DE.$ If $BC = 12$ and the area of $\triangle ABC$ is $180,$ what is the area of $ABDE$?
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newuseeer
Aug 16, 2018
#2
+15
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newuseeer
Aug 16, 2018