已知:∠A与∠B互余,∠A的补角比∠B的补角小30°,求∠A、∠B的度数要有算式………………………………………………………………………………………………………………………………………
已知:∠A与∠B互余,∠A的补角比∠B的补角小30°,求∠A、∠B的度数要有算式………………………………………………………………………………………………………………………………………
已知:∠A与∠B互余,∠A的补角比∠B的补角小30°,求∠A、∠B的度数
要有算式…………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………
已知:∠A与∠B互余,∠A的补角比∠B的补角小30°,求∠A、∠B的度数要有算式………………………………………………………………………………………………………………………………………
180°-A+30°=180°-(90°-A)
A=60°
B=30°
60 30