平面几何和平面向量结合是近年来高考命题的基本趋势,而通过向量给出已知条件探求三角形的面积之比是常见而重要的一类题型.本文对该类问题进行初步总结,供大家在学习中借鉴. The combination of plane geometry and plane vector is the basic trend of college entrance examination proposition in recent years, and it is a common and important type of questions to find out the area ratio of the known conditions to seek the triangle by the vector.This paper makes a preliminary summary of the problems for you Learn from learning.