1, the best happiness is to remember someone, the best hard work is to miss someone so much that I want to cry, the best satisfaction is your conce
In △ABD, BD = 200m, ∠ Abd = 120,
∠∠ADB = 180-∠ADC = 30
∴∠dab= 180- 120-30 = 30
In △ABD，AB=BD=200，AD= A B 2 +B D 2 -2AD？ BD COS 120 = 200 3 (m)
In delta
Model essay on young pioneers' personal deeds 1
Wang, an excellent player with excellent academic performance, is currently a study committee