SAT 2
问题描述：
SAT 2
Two identical spheres of radius 6 intersect so that the distance between their center is 10.The points of intersection of the two spheres form a circle.What is the area of this circle?
为什么在解 -2（x+5)
答
1.the area of the circle is 11pi.
2.可以拆开再移项.
3.√（x）is greater than or equal to 0,so √（x）=3.第一问能否给出详细步骤？