D & E are points on the sides AB & AC of triangle ABC such that DE||BC and AD:DB = 4:5. CD & BE intersect each other at F. Find the ratio of ar(DEF) & ar(BCF).

answer: i'm not going to give you the answer, but some hints to work it out.

step-by-step explanation: so, if there is a straight line that means that the line angle is 180°. so we subtract the 2 angle measures provided, (15 and 38) from 180. so the answer is 180 - (38 + 15). (you have to solve the equation)

ruth is 6 years old

step-by-step explanation:

6 + 24 = 30,   so 6/30 = .2  

if you do 1/5 it also equals .2, so that is the answer.

what are you trying to solve here

step-by-step explanation: