Question

In an equilateral triangle ABC. AB = 20 cm AD is the median to side BC if G is centroid of triangle ABC find the length AG?

• A. 20/√3
• B. 30/√5
• C. 25/√6
• D. 24/√7

Answer 1

Answer:

A. 20/√3

height , h = median of equilateral triangle = AD

h = √3a/2

= √3 × 20/2

= 10√3

3 unit =10√3

1Unit=10/√3

2unit = 20/√3