Question

determine o comprimento da mediana AM do triangulo cujos vértices são A (,37) B (-8,8) e C (2,10)

Answer 1

Ola Isabelle 

Mx = (Bx + Cx)/2 = (-8 + 2)/2 = -3
My = (By + Cy)/2 = (8 + 10)/2 = 9 

dAM² = (Ax - Mx)² + (Ay - My)²
dAM² = (3 + 3)² + (7 - 9)² = 36 + 4 = 40

AM = 2√10