Question

Problema 3 urgeent.8 de puncte în schimb

Answer 1

a) A = L*l = 8*6 = 48 cm^2
AC = rad(AB^2 + BC^2) = rad(64+36) = rad100 = 10 cm

b) A = (BM+CN)*BC / 2 = 7*6/2 = 7*3 = 21 cm^2

c) A(/\MNP) = A(ABCD) - A(/\AMP) - A(/\DNP) = 48 - 3*4/2 - 3*5/2 = 48-6-7,5 = 34,5 cm^2
MP*NQ/2 = 34,5
MP*NQ = 69
MP = rad(3^2 + 4^2) = rad25 = 5 cm
NQ = 69/5 = 13,8 cm