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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
+8733
+1

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!

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

$$P_{ABC}=5\times 2\times 2$$

$$P_{ABC}=20$$

!

Nov 23, 2019
#2
+10810
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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
edited by Omi67  Nov 23, 2019
edited by Omi67  Nov 23, 2019