如图,△ABC∽△A'B'C',相比为K,AD与A'D'分别是△ABC和△A'B'C'的高,说明：AD/A'D'=K
问题描述：
如图,△ABC∽△A'B'C',相比为K,AD与A'D'分别是△ABC和△A'B'C'的高,说明：AD/A'D'=K
答
∵△ABC∽△A'B'C',∴∠B=∠B',AB/A’B‘=k,
∵AD、A'D'为高,∴∠ADB=∠A'D'B'=90°,
∴△ADB∽△A'D'B',
∴AD/A'D'=AB/A'B'=k