Question

已知l1//l2,角1=65度,角2=35度,求角5和角6的度数

Answer 1

l1//l2,角1=65度

所以∠1=∠3,∠6=∠4+∠2

∠5+∠3+∠2=180°,

∠5=180°-65°-35°=80°

∠3=∠4=65°

∠6=65°+35°=100°