28°46‘等于几度?
问题描述：
28°46‘等于几度?
答
28°46‘
=28°+（46′÷60）°
=28°+约0.77°
≈约28.77°
28°46‘等于几度?
28°46‘
=28°+（46′÷60）°
=28°+约0.77°
≈约28.77°