in triangle abc ad is median and a b parallel or perpendicular to BC then prove that a b square + AC square is equals to 280 square + half BC square

hi

choose the best informal 'tú' translation of the following sentence = run

it's an imperative form ===> corre (tú)

correr (présent)

corro

corres

corre

corremos

corréis

corren

none of thes are

imperative tense

corre (tú) > correct

corra (él/ella/ud)

corramos (nosotros)

corred (vosotros)

corran (ellos/ellas/uds)

hope this will : )