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1. DEF is the medial triangle of ABC and XYZ s the medial triangle of DEF. If the perimeter of XYZ is 5 what is the perimeter of ABC? (no picture)

2. In triangle ABC, the acute angles are angle B=60 and angle C=30. The centroid of triangle ABC is G If AB=1, what is AG? (no picture)

 Nov 23, 2019
 #1
avatar+8834 
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1. DEF is the medial triangle of ABC and XYZ s the medial triangle of DEF. If the perimeter of XYZ is 5 what is the perimeter of ABC? (no picture)

 

1. DEF ist das mediale Dreieck von ABC und XYZ ist das mediale Dreieck von DEF. Wenn der Umfang von XYZ 5 ist, was ist der Umfang von ABC? (kein Bild)

 

Hello Guest!

 

\(P_{ABC}=2\times P_{DEF}\\ P_{DEF}=2\times P_{XYZ}\\ \color{BrickRed}P_{XYZ}=5 \)

\(P_{ABC}=5\times 2\times 2\)

\(P_{ABC}=20\)

laugh  !

 Nov 23, 2019
 #2
avatar+11102 
+1

2. In triangle ABC, the acute angles are angle B=60 and angle C=30. The centroid of triangle ABC is G If AB=1, what is AG? (no picture)

 

 

 

 

laugh

 Nov 23, 2019
edited by Omi67  Nov 23, 2019
edited by Omi67  Nov 23, 2019

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