∠1=55°，则它的余角是______°．
∵∠1=55°，
∴∠1的余角=90°-∠1=90°-55°=35°．
故答案为35°．
When you introduce me to Mr. Johnson, could you please say for me?
A．everything
B．anything
C．something
D．nothing
大陆架
