11. In Triangle ABC, D and E are points on AB and AC respectively such that DE || BC. If AD = 6x - 7, DB = 4x - 3, AE = 3x - 3 and EC = 2x-1, find x

8+10

step-by-step explanation:

you multiply 4 by 2 and 5 by 2

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.

d 600 because 15*10*2=300

300+300=600

step-by-step explanation:

step-by-step explanation:

(3rd option) - c