三边为4,根号3,根号7的直角三角形∠A=?,∠B=?
问题描述:
三边为4,根号3,根号7的直角三角形∠A=?,∠B=?
答
∠A=arcsin(3/4)=48.59037789度=48°35'25.36''∠B=90-48.59037789度=41.4096221度=40°24'34.64''
三边为4,根号3,根号7的直角三角形∠A=?,∠B=?
∠A=arcsin(3/4)=48.59037789度=48°35'25.36''∠B=90-48.59037789度=41.4096221度=40°24'34.64''